Category: Fiber lasers

Recently, a team of scientists has presented the world’s first metasurface fiber laser system that allows emitting “super-chiral light” that is considered to be a laser beam light with ultra-high angular momentum. Herewith, such a light produced by a fiber laser can be applied as a type of “optical spanner” to or for encoding information in optical communications.

The ability of laser beam light to carry angular momentum allows being transferred to matter. It should be noted that the more angular momentum created by the light leads to the possibility of more transfer. Therefore, the laser beam light acts as an optical spanner. The new fiber laser creates a new high purity “twisted light” not offered from laser technology before, containing the highest angular momentum reported from a laser. 

At the same time, the team has designed “a nanostructured metasurface that has the largest phase gradient ever produced and allows for high power operation in a compact design.” Thus, it is a world-first fiber laser system for creating exotic states of twisted structured laser beam light, on-demand. 

Scientists have already demonstrated their new fiber laser technology to emit any required chiral state of laser beam light, with full monitoring over both angular momentum elements, the spin (polarization), and orbital angular momentum of light. As for the design of the presented laser system, it becomes real by the complete control provided by novel nanometer-sized metasurface within the fiber laser.

Herewith, the metasurface consists of numerous small rods of nanomaterial, which changes the laser beam light as it passes through. The thing is that the laser beam light passes through the metasurface numerous times, obtaining a new twist every time it does so. The result of such a fiber laser system means the production of new types of chiral laser beam light not offered by lasers until now, and full monitoring of light’s chirality at the source, overcoming current challenges.

To be more precise, the developed laser system applies a metasurface to fill laser beam light with ultra-high angular momentum, resulting in an unprecedented change in its phase while also monitoring the polarisation. Herewith, “by arbitrary angular momentum control, the standard spin-orbit symmetry could be broke, for the first fiber laser to create full angular momentum control of laser beam light at the source.”

The team has developed the metasurface for the laser system made from carefully crafted nanostructures to cause the required effect, it is also considered to be the most extreme OAM structure so far produced, with the highest phase gradient yet reported. Finally, they got a fiber laser system that allows influencing OAM states of 10 and 100 simultaneously for the highest reported AM from a laser to date. Additionally, the fiber laser creates all prior OAM states reported from custom structured laser beam light lasers.

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 laser cutting machine finds widespread application in the industrial areas, therefore, it can be used in numerous places. Herewith, in the industrial area, the efficiency of the fiber laser cutting machine plays an essential role because its absence influences the cutting process. Nevertheless, it is possible to increase the efficiency of the fiber laser system for cutting.

To be more precise, laser systems for cutting are widely applied in all fields of life. Numerous companies prefer using fiber laser cutting machines for a few years but their efficiency and cutting ability continue decreasing. The possible reason for the decrease in cutting performance is the influence of focus position on the cutting process. Herewith, the diameter of the focal spot has to be as tiny as possible to create a narrow slit. For instance, if the performance of the fiber laser system for cutting is decreased, the cutting speed of the focus position can be tuned. 

It should be noted that the cutting speed of the laser system has a direct connection with the laser beam power, the larger power leads to the higher cutting speed. Such properties as the distance between the workpiece and the nozzle also influence the effect. “Too far distance will cause energy waste, while too close distance will affect the dispersion of the splashed cutting products.” Usually, the proper distance of the laser beam is considered to be 0.8 m.

The thing is that the laser beam power of fiber laser cutting machines decreases that directly linked to the cutting performance. Moreover, inappropriate operation, long-term load production, long-term maintenance, etc. will result in the performance degradation of the fiber laser system for cutting, consequently, reducing effect discount. Thus, it is inescapable to avoid the performance decrease of the laser system cutting.

The potential solution for fiber lasers to avoid the decline includes:

• Careful attention to the maintenance of cutting machines.

Since the processing time of fiber laser cutting machine is quite long, almost all their parts wear, therefore, its performance suffers and leads to frequent replacement of vulnerable parts, as well as cleaning of optical elements and regular oil of bearings to keep driving flexibility and machining precision.

• Standardization of laser system cutting operation.

The fact is that fiber laser systems for cutting processes require the operation of specially qualified personnel. It is essential to correctly perform the sequence of the switch machine, to be familiar with the buttons of each switch panel, to correctly operate the fiber laser cutting machine, etc. Thus, the operation by professionals plays a crucial role in the normal operation of laser systems for cutting and also decreases the probability of safety accidents.

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

In the last 60 years, fiber laser systems have reached great successes, herewith, almost all features have resulted in a very high level. Now fiber lasers find their applications in numerous areas such as materials science, bio-imaging, communications, energy sciences, industrial processing, fundamental physics, etc.

Today researchers study the most critical and potentially productive questions in fiber laser technology that include the growth in power (peak power and average power as well) that greatly moves forward and opens new applications of laser systems. Additionally, compact and portable space-based laser technology is accessible in various applications.

For instance, researchers from China have launched the station of extreme light projects, the large ultra-intense fiber laser being built in China. Nowadays “most of the engineering designs have been finished, and the front end of the facility, which can be regarded as a small prototype of the laser system facility, is being developed.” This project includes a 100-PW fiber laser system that will be created, which can offer a focused intensity of more than 1023 W/cm2.

Moreover, this fiber laser is able to operate with a hard X-ray for pump-probe tests, for example, experimentally verifying the vacuum birefringence phenomenon. The laser technology is based on optical parametric chirped-pulse amplification as a crucial advantageous technology that plays a highly important role. The thing is that compared to standard Ti: sapphire, the new laser system offers broader bandwidth, higher single-pass gain, and less thermal effect, which provides higher-energy amplification with shorter compressed laser beam pulse durations.

Herewith, the 100-PW  fiber laser system has a higher single-pass gain and related shorter optical distance that is advantageous for coherent laser beam combination and micrometer precision levels. The fiber laser technology provides an application of strong fields offered by laser beams to break down and explore the quantum vacuum. 

It should be noted that vacuum QED is considered to be one of the most promising applications for the fiber laser facility, and the collision of the 100-PW laser system and XFEL laser beams to examine the vacuum birefringence effect is regarded as the “day-one” experiment. Also, the creation of high-energy particles and radiation can become another very interesting application.

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