Tag: laser system

Fiber laser systems criteria for clinical treatments

Which fiber laser systems suit treatment in clinics best? First of all, it should be noted that a laser system with higher power does not mean the opportunity to do things a much lower power fiber laser system will not. The application of Class 4 laser systems of 0.5 W of power is the ideal solution for laser technology treatment in clinics.

To be more precise, photobiomodulation therapy or low-level fiber laser therapy requires a sufficient quantity of laser beam light energy into injured tissues. The thing is that skin scatters and reflects most of the laser beam light that it is exposed to resulting in great challenges.

Herewith, specific wavelengths of laser beam light energy have the skin penetration ability higher than others. Nonetheless, additional barriers (hemoglobin, oxyhemoglobin, fat, and water) are distinguished under the skin that also catches or reflects more of the remaining laser beam light. Thus, it is necessary to pay careful attention to the choice of therapeutic wavelengths to maximize a fiber laser system’s efficiency.

Also, laser systems with the ideal laser beam wavelengths to penetrate the tissue and a low level of overall power allow efficient treatment of small areas and take 30 minutes or even longer. The possible solution to the low power of fiber lasers and the requirement to treat a large area is substantially increasing treatment time to maintain the necessary dosage.

Such a disadvantage of Class 3b laser systems is considered to be the main reason a lot of early fiber laser research demonstrated amazing results. Compared to Class 3, Class 4 fiber laser systems are used in photobiomodulation, where the previous lasers leave off at 0.5W of laser beam power.

The higher power of laser systems enables “sufficient laser beam energy to be passed onto nerve, muscle, ligament, tendon, and capsular tissue in a reasonable amount of time”. The thing is that the usual therapy session takes from 2 to 6 minutes, which is acceptable in a clinical setting.

Fiber laser systems of high beam quality offer such benefits as the versatility to treat injured tissue in multiple areas in a given session, which greatly improves the overall effectiveness of the laser when adding it to a plan of care. Nevertheless, Class 4 laser systems commonly have a higher cost than Class 3 laser technology.

Finally, it is necessary to take into consideration the following factors when choosing fiber laser products: the laser device manufacturing, warranty parameters, application heads, and a type of available customer service to learn the staff how to use the laser system effectively after it is purchased. Although the fiber laser cost plays a crucial role, careful consideration should be given to the mentioned factors.

Optromix is a fast-growing fiber laser manufacturer and a vendor of optical fiber sensors and optical monitoring systems. The company offers fast turnkey solutions and creates sophisticated fiber laser systems for special purposes. Optromix uses only its technologies and develops a broad variety of fiber lasers. If you have any questions or would like to buy a laser system, please contact us at info@optromix.com

Fiber Lasers as a tool for the treatment of kidney stones

The treatment of kidney stones is regarded as a painful process, however, specialists from the U.S. have developed a laser technology to make the therapy easier for patients in a way never done before. According to specialists, a two-month test makes the medical center the first in North America to apply pulsed fiber lasers to take away kidney stones.

The development of this laser technology takes a couple of years on project. That is why the specialists try to make Ohio State the first to employ it, as it already had some experience. To be more precise, specialists started developing the opportunity of applying this type of fiber laser system for urology in early 2015. By mid-2017, certain benefits of the new laser technology were over to the conventional state of the art.

The fiber laser leads to kidney stones’ breakage into tiny pieces. Herewith, such a laser system is considered to be more consistent compared with traditional laser technology. The operating principle is based on laser beam energy that breaks up the stones: “Once we get to the stone, the laser beam energy is delivered through an optical fiber that’s brought into contact with the stone. Once you’re touching the stone, activate the fiber laser system. And it delivers pulses of energy to the stone that breaks it up.”

The main benefit of such fiber laser treatment is a short time of breakage resulting in less required time under anesthetic and a faster recovery for patients. The thing is that the previous laser systems applied for kidney stone procedures are dated. They have been used for about 20 years and had numerous limitations. While modern pulsed fiber lasers are one of the biggest breakthroughs in urology. The developed fiber laser meets the scientist’s expectations. It allows breaking up really big stones that were difficult to treat with the older laser system.

Additionally, there is no often a need for stents because the new fiber laser system enables to efficiently break the stones into tiny parts and dust. It should be noted that a stent is a temporary tube between the kidney and the bladder that helps the kidney drain. Herewith, it provides discomfort to patients and requires an additional procedure of its removal.

Also, the pulsed fiber laser offers other advantages for medical staff, for instance, it is smaller and more portable than the previous model that required a special outlet in operating rooms. The main goal of fiber laser development is to help physicians get better clinical outcomes for patients. Thus, the laser system is planned to be used in areas of the hospital where traditionally haven’t been used before.

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Laser Beam diodes create deep-UV light

A team of scientists from Japan has manufactured a laser beam diode that allows emitting deep-ultraviolet light. To be more precise, the developed laser system can produce the shortest laser beam wavelength in the world, it is only 271.8 nm under pulsed current injection at room temperature.

It should be noted that previous versions of similar fiber lasers succeeded to achieve emissions only down to 336 nm. The potential applications of the new laser system include disinfection in health care, treating skin conditions, for instance, psoriasis, and analyzing gases and DNA.

The base of the fiber laser system is made of a high-quality aluminum nitride (AlN) substrate that enables to escape of the limitations connected with lower quality AlN. The thing is that the AIN quality is considered to influence the efficiency of a fiber laser diode’s active layer in converting electricity into laser beam light energy.

The team confirms that a quantum well separates p-type and n-type layers in the laser system. The operating principle of the developed fiber laser is based on “electric current that is passed through a laser beam diode, and positively charged holes in the p-type layer and negatively charged electrons in the n-type layer flow toward the center to combine, releasing energy in the form of photons.”

Thus, scientists have developed the quantum well for the fiber laser so that it could produce deep UV light. The p- and n-type layers consist of aluminum gallium nitride (AlGaN). Herewith, every side of the p- and n-type layers in the laser system are surrounded by cladding coatings made of aluminum gallium nitride as well. The cladding is produced by using the process of doping.

Doping is regarded as a way that changes a material’s properties. The team also claims that the aluminum gradient of laser beam diodes increases the flow of positively charged holes. Finally, it was discovered that the technique of the polarization doping of the p-side cladding layer implied that a pulsed electric current of “remarkably low operating voltage” of 13.8 V in the fiber laser system was required for the emission of the UV wavelength.

Nowadays the team of scientists plans to perform advanced joint research to reach continuous room temperature deep-UV lasing for the production of UV-C semiconductor laser system products that can greatly improve the current benefits leading to the appearance of new promising applications in various areas.

If you are looking for a compact highly efficient laser system, the Optromix company is ready to manufacture it. Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high-powered fiber lasers, and other types. We offer simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry.

Moreover, our fiber lasers are exceptionally light and compact and can be embedded in other devices or used in mobile applications. Our company offers single-mode Erbium lasers and Ytterbium lasers as well as single-frequency fiber lasers (similar to DFB lasers), wavelength-tunable fiber lasers systems, and unique DUV fiber laser system.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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Temperature control is crucial for the fiber lasers industry

Thermal stability plays a crucial role in industrial laser systems. Thus, the developers and manufacturers of fiber lasers have to design them to provide accurate heat regulation. Because inappropriate temperature control can lead to systemic or catastrophic consequences. The thing is that fluctuating temperatures significantly influence the capabilities of fiber laser systems and their lifespan, as well as production outcomes and customer satisfaction.

The risk of premature failures on laser systems increases, to be more precise, in the case of low-temperature control (when electronics are not being cooled properly). Numerous fiber lasers have water-cooled systems (the chiller), and the laser stops operating when any of those components go down. New chiller technologies have been developed to produce a more reliable chiller that fiber laser manufacturers can confidently install into all their systems.

The industry of chilling systems is considered to develop with the demands of the fiber laser industry. “Having a chiller that has the right heat removal, along with excellent stability and a level of quality and maintenance-free operation, is absolutely essential in keeping that fiber laser system up and running, so the customer’s making parts.” And power stability of laser systems is highly important for their reliable operation.

An ineffective chiller is going to have a great impact on a fiber laser with power stability. Additionally, it can influence the laser beam profile that can transform or warp things. In the case of water temperature increase, metal components of laser systems can be moving slightly more than it is required, and it can lead to the motion of the laser beam resulting in higher pointing instability.

The benefits of modern chilling systems for fiber laser systems include:

high quality;
less downtime;
ease of use.

Therefore, such innovations are required and vital in the evolution of the fiber laser industry. Some customers would not like to apply laser systems because of their maintenance that is regarded as the number one reason for failure. Nevertheless, now the problem is solved by a self-changing filter, due to which it is changed for up to two years.

New fiber laser technologies allow the development of a user-friendly recirculating chiller for various applications. Today it is possible to calculate the ideal pump, fluid, and power capacity for the chiller in fiber laser systems. Besides, the developers can produce a chiller considering your budget, herein, it will offer the highest value for customers.

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Fiber lasers fight greenhouse gases

A team of researchers from Switzerland has developed a detecting system consisted of conventional fiber lasers and a photonic chip that allows tracking greenhouse and other gases by the application of a mid-infrared light source. The team uses a commercially affordable fiber laser system and combined it with a waveguide chip. That helps surely to emit laser beam lightwaves in the MIR spectrum.

According to the researchers, the developed laser system based on a new MIR laser beam light source enables them to determine greenhouse, other gases, and, moreover, molecules in a person’s breath. The thing is that the used fiber laser produces light in a specific wavelength range.

The operating principle of the fiber laser system is based on the laser beam that “is directed through a waveguide measuring 1 μm (0.001 mm) across and one-half mm in length. The waveguide can alter the frequency of the light as it passes through.” Herewith, several key aspects of the laser system’s design were improved. Among them are the waveguide geometry and material and the wavelength of the original laser beam source.

Thus, the researchers obtain a fiber laser system that is regarded as simple, yet efficient and reliable. Also, it becomes possible to adjust the wavelength of the laser beam light by tuning the geometry of the waveguide. The laser system is considered to be a turnkey, highly efficient, compact MIR laser beam source. It provides power levels sufficient for spectroscopy applications.

The system has been already tested on the detection of acetylene, a colorless and highly flammable gas, by absorption spectroscopy. The thing is that the fiber laser emits laser beam light in the MIR spectrum, saving 30% of the original signal strength. For instance, the waveguides pumped with a 2-μm fs fiber laser succeded a spectroscopic spectral region in the 3- to the 4-μm range, with up to 35% power conversion and mW-level output powers.

The researchers confirm that the developed fiber laser system sets a new benchmark for efficiency. Moreover, it is the first fully-integrated spectroscopic laser beam source resulting in no need for the laborious process of accurately aligning all the components in a standard laser system.

Finally, it was challenging to transport previous IR fiber laser systems for application since they include complex, damage-prone hardware. Modern laser systems can promote the development of additional miniaturized MIR technologies. It has a wavelength range that scientists rarely get to work with. Additionally, now the researchers have the opportunity to see on-chip detectors that is possible to be easily carried out into the field.

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Fiber Lasers and technologies for military use

Laser beam weapons have long ceased to be an element of sci-fi culture, and every year fiber technology more and more firmly takes its place in military application. Of course, high-power laser systems that can cut starships and buildings into parts have not yet been invented, but many modern fiber lasers still deserve special attention. We will talk about them today.

1. Lockheed Martin company is a manufacturer of a combat laser module whose laser beam power can be increased by simply adding new emitters. In April 2014, the company produced and tested a 60-kilowatt fiber laser for military purposes. Herewith, its installation in the future will be part of the combat HEL MD.

2. The American company Boeing produces not only aircraft but also laser beam weapons for detecting missiles. The laser system installed on the Boeing YAL-1 aircraft is considered to be a chemical laser that is capable of destroying missiles and mortar shells at a distance of up to 1.5 km, even in challenging weather conditions.

3. Fiber laser Design Bureau of Precision Engineering named. Nudelman is a weapon designed to deactivate optical devices and manpower of the enemy. The laser system operates as a scanner: the laser beams emitted in a spectrum invisible to the human eye scan a potentially dangerous area. As soon as an enemy optical device enters the field of view of a fiber laser system, it is hit by a laser. It should be noted that such a system can strike not only the optics themselves but often the eyes of the observer.

4. Another creation of Boeing is designed to destroy drones, which have become increasingly popular over the past couple of years. A compact laser module offers the ability to make damage on individual parts of an unmanned module (which can be useful if the enemy device does not need to be destroyed but captured), although it can only be installed on fixed surfaces.

5. The Israeli laser system made by Advanced Defense Systems was created with the aim of hitting artillery shells in flight. It is capable of destroying short-range missiles, mortar mines, and shells using a laser beam. This fiber laser can be used against ammunition at a distance of up to 7 kilometers.

Devices emitting laser beams are used mainly against high-speed shells or optical systems of the enemy. Thus, a laser system is one of the most reliable ways to bring down an enemy rocket or mine while still approaching, which allows negating its damaging effects. However, the use of laser systems as a mass attack weapon is just around the corner – few devices can be compared in strength to powerful emitters, and as soon as humanity can solve the problem of a reliable source of energy that will feed the machines in the field, a new era of military technology will begin.

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The operation of fiber lasers

A fiber laser is a powerful device for the production of single-mode radiation with the highest possible performance and quality characteristics. Fiber optic systems for processing materials occupy about one-fourth of the entire laser market.

It should be noted that the diameter of the fiber laser system has micro values, so the laser beam allows for cutting out sharp corners and other complex shapes with absolute accuracy, even in a sheet of metal with high hardness and large thickness.

The beam formed by a fiber laser is designed primarily for working with metal surfaces, so the fields of application include automobile, ship and rocket engineering, manufacturing of sea containers and railway cars, machine tool construction, robotics, marking and engraving, and the military-industrial complex.

In addition to metals, the fiber laser is perfect in working with stone, glass, and some types of plastic, so it is also used in those industries that massively use these materials (for example, the advertising industry, some types of construction work, etc.).

The priority in using solid-state equipment (fiber lasers belong to this category) over any other systems is explained by a large number of economic and qualitative advantages, which are the following:

positioning accuracy at all speed modes;
high power;
excellent laser beam quality with minimal transmission loss and small angular divergence;
multi-function: laser systems can not only cut, engrave and perforate materials, but also solder or perform welding, and cleaning of surfaces from any type of contamination;
compact size, easy transportation;
silent operation and almost complete absence of industrial waste.

The fiber laser system consists of two main parts: pump lamps (semiconductor diodes) and fiber optic cable. A light-conducting optical fiber with a core of transparent quartz doped with rare earth elements is inside the cable (this is ytterbium in most machines used in industry).

At the ends of the central rod, a fiber Bragg grating (FBG) is most often performed. The notched sections have a modified reflectivity and act as resonators, reflecting light propagating along the optical fiber and maintaining the desired wavelength. The laser beam retains its monochrome and other quality characteristics thanks to them.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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The new vertical-cavity surface-emitting laser system

A team of scientists from the U.S. has demonstrated a new design of a vertical-cavity surface-emitting laser system that provides record-fast temporal bandwidth. The developed fiber laser technology is based on the combination of numerous transverse coupled cavities that increases the optical feedback of the fiber laser.

It should be noted that the new laser system plays a crucial role in the production of energy-efficient and high-speed optical interconnects in data centers and supercomputers. To be more precise, vertical-cavity systems are a class of semiconductor laser beam diodes combined with a monolithic resonator that produces laser beam light in a direction perpendicular to the chip surface.

Herewith, this type of fiber laser systems becomes more popular thanks to its advantages such as compact size and high optoelectronic performance. For instance, compact laser systems can be applied as “an optical source in highspeed, short-wavelength communications, and optical data networks.”

Additionally, small fiber lasers find applications in automotive or data communications to detect dense traffic and high-speed transmission. Nevertheless, the current fiber laser system has its speed limitation such as the 3-dB bandwidth. Moreover, such parameters as thermal effects, parasitic resistance, capacitance, and nonlinear gain effects also influence the laser.

The thing is that the direct modulation of this fiber laser system cannot be higher than 30 GHz because of the nonlinear optical amplification phenomenon. Nonetheless, the new fiber laser technology has a revolutionary novel design for lasers. The used multi-feedback technique that unites numerous coupled cavities allows for carefully direct and control of the laser beam. Therefore, the researchers can increase the strength of the feedback and expand the temporal laser beam speed leading to overcoming the current limitations.

The fiber laser technology is novel. Now the direct feedback from each cavity is required to be moderate and then the researchers can direct them accurately via the coupled cavities resulting in more design freedom of laser systems. They also claim that new modulation bandwidth can achieve the 100 GHz range.

Thus, the design of fiber lasers has greatly changed. The novel coupled cavities enable to carefully monitor the feedback to the laser system reached by greatly slowing the laser beam light down. Moreover, now it is possible to produce lasers of various designs for particular applications in both fundamental science and technology due to this technique. The new applications of this fiber laser system include the automotive industry where the laser beam acts as a proximity sensor or the smartphone’s face ID, as well as the use for quantum information processors such as coherent Ising machines.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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Fiber lasers produce perfect laser beams

A team of researchers from Germany has presented an ultrafast fiber laser system. It allows for producing an average power that is higher than 10× that of standard high-powered lasers. The fiber laser technology enables researchers to change both the speed and efficiency of industrial-scale materials processing.

It should be noted that the developed fiber laser has been already demonstrated at the OSA laser congress. The thing is that there is a combination of 12 laser beam amplifiers in the new laser system. Herewith, these lasers overcome current limitations provoked by laser beam light emission and waste heat.

Additionally, optical fibers used in fiber laser systems show “a laser beam geometry with a high surface-to-volume ratio. They effectively dissipate this heat. Therefore, current high-powered laser systems obtain an average power of 1 kW.” Nevertheless, the power increase leads to a decrease in laser beam quality because of the generated heat load, creating a limit.

Thus, the application of 12 amplifiers makes it possible to develop a laser system that can generate 10.4 kW average power. It is equal to 80 MHz repetition without any distortion or decline of laser beam quality. To be more precise, the fiber laser system has been already tested and test results demonstrate a small heating effect.

Moreover, the researchers claim that the use of more amplifier channels results in laser beam power scaling up to the 100-kW level. The fiber laser’s applications include such extreme fields as laser-driven particle acceleration and space debris removal in addition to material processing.

There are also other applications, for instance, high-speed scanning and ablation cooling. Herewith, the developed fiber laser system is not ideal and still needs improvement. Nowadays the researchers plan to discover new applications at the high-power level and the transfer of the fiber laser technology.

The team of researchers pays careful attention to multicore optical fibers that provide the potential to transmit further superior performance in simpler and compacted laser systems. If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it.

Optromix is a manufacturer of laser systems, optical fiber sensors, and optical monitoring systems. We develop and manufacture a broad variety of fiber lasers, high-powered fiber lasers, and other types. The company offers simple laser products, as well as sophisticated fiber laser systems with unique characteristics, based on the client’s inquiry. We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes have high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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Laser beam pulses make optical fibers act as gun

A team of researchers from the U.S. has developed a new fiber laser technology that allows for stimulating the emission of electrons from the tip of an optical fiber by a laser beam pulse passing through the fiber. It should be noted that according to previous researches, it is possible to use these nanotips of optical fibers as electron sources if they are stimulated by laser beam light. Nevertheless, this light had to be originated from an external source before.

To be more precise, now a light pulse from a fiber laser passing along the optical fiber can lead to the appearance of electrons instead of previous techniques. Such fiber laser technology provides more efficient nanoscale imaging and sensing applications making it possible to add electrons from previously challenging angles or locations.

For example, previously the optical fiber tips had to be tracked by laser systems, and this was considered to be more challenging technologically. Therefore, this problem limits the ability to tale images quickly and from any position. The promising solution is electron emission techniques that lowered the necessary laser beam power thanks to the proper design of the nano-scale tip of the optical fiber.

“If the optical fiber terminates in a tapered gold-coated nanotip of the correct dimensions, then the field intensity for a pulse of fiber laser light going through the fiber would demonstrate a distinct hot-spot at the tip, sufficient to stimulate electron ejection.” The fiber laser technology has been already tested on a femtosecond laser system to emit ultrashort laser beam pulses through an optical fiber with 50-nanometer-radius nanotip coated with gold film.

The test results demonstrate the appearance of controlled electron emission as the result of stimulation from the gold-coated nanotip of optical fiber. Additionally, the electric field increases by specific wavelengths of laser beam light. Herewith, a similar result can be achieved with a less powerful continuous-wave laser system, if the voltage at the tip is enhanced to compensate it.

It should be noted that this is the smallest laser beam intensity capable to cause electron emission from nanotips. Thus, nowadays it is possible to use a low-cost laser system instead of expensive ones. If you are looking for a compact highly-efficient laser system, the Optromix company is ready to manufacture it.

We manufacture laser modules using our technologies based on the advanced research work and patents of the international R&D team. Laser processes are of high quality, high precision, easily-automated manufacturing solutions that provide repeatability and flexibility. If you have any questions or would like to buy a fiber laser system, please contact us at info@optromix.com

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