Abstract
We report a diode-pumped Tm3+-doped double-clad all-fiber laser operating at 1940 nm with a master oscillator power amplifier configuration; 50 W of seed was generated in master oscillator with 144 W pump power, corresponding to a slope efficiency of 40.1 %. With 212 W pump power, the seed was amplified to 140.9 W in power amplifier, corresponding to a slope efficiency of 47.1 %. The peak wavelength was 1939.57 nm with a narrow spectral line-width of 0.09 nm. The beam quality factor of M 2 was 1.29. Neither amplified spontaneous emission nor parasitic lasing was observed during the amplification process. The output power was only limited by the pump power.
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.
