Abstract
Stimulated Brillouin scattering (SBS) management in kilowatt-level, high brightness, narrow spectral width, and all polarization-maintained amplifiers using laser gain competition is demonstrated. This method can increase the SBS threshold of the fiber amplifier by more than double without changing the linewidth. By further incorporating the phase modulation technique, the SBS threshold is scaled to be as high as 32.4 times compared to the single frequency amplification. An output power of 1082 W is achieved with a polarization extinction ratio (PER) of ∼14 dB, linewidth of <7.6 GHz and beam quality (M2 factor) of ∼M2 = 1.14 in a preliminary validation experiment. This kind of fiber source has great potential in applications of high-power coherent beam combining or spectral beam combining systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
