High-Power Laser System Components
TeraXion has produced high-quality fiber Bragg grating (FBG) reflectors for over 15 years. The expertise we developed allows us to understand our customers’ challenges with power management in various optical fibers, resulting in personalized support from the design to the manufacturing of high-power fiber lasers. Our PowerSpectrum™ product line meets the requirements of high-power applications and ensures reliable operation at multi-kW power levels. Our products help increase the power output of single oscillators, reducing a laser system's dollar-per-Watt ($/W) ratio.
Solid-state and gas lasers were introduced to the metal-working industry in the 1990s. Those lasers have since been increasingly replaced by fiber lasers, which consume less power and cost less to maintain. Moreover, challenging industrial applications, such as thick metal cutting, have placed even higher laser output power requirements.
To sustain their adoption and market growth, fiber lasers must continue to raise their output power and reduce the cost-per-watt ($/W). One method to increase the power of fiber lasers is to combine several lower-power oscillators to create a higher-power beam. This has been the standard in the laser-based cutting industry for years. While that strategy does increase the overall power, it does not significantly reduce $/W.
TeraXion's PowerSpectrum products enable manufacturers to reduce $/W by increasing the power output of single oscillators, resulting in fewer high-power oscillators per system.
High-Power Laser Reflectors
To increase throughput, most industrial material-processing applications require higher average power from their light sources. Direct diode systems are powerful, but their low brightness limits their use to applications such as cladding and welding. More challenging applications like metal cutting and 3D printing require much brighter light sources. In fiber lasers, the pump diodes are coupled to a gain fiber that concentrates the diode’s energy in its core, significantly increasing the brightness of the source. The conversion efficiency within the gain fiber relies on the quality of the fiber Bragg gratings at each end of the laser cavity. TeraXion's PowerSpectrum™ HPR reflectors are built upon time-proven FBG technology that can withstand extremely high power while increasing efficiency and minimizing the generation of non-linear effects.
RSS Raman Scattering Suppressor
The laser material processing industry requires high throughput without compromising process stability to ensure high manufacturing yield. As they increase the output power, laser manufacturers face challenges such as thermal instabilities or non-linearities that reduce the laser overall stability and reliability. Luckily, they can overcome these by using TeraXion’s Raman Scattering Suppressor (RSS) to decrease the Stimulated Raman Scattering (SRS) effect within their lasers. This reduction of SRS greatly contributes to increasing the laser engines’ output, while improving their immunity to back reflections, improving their reliability and the general power output stability. The RSS also allows laser manufacturers to use smaller core fibers to lower thermal mode instabilities (TMI), hence improving both pointing stability and power spatial distribution.