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Proceedings Article

Experimental and theoretical studies of single frequency PCF amplifier with output of 400 W

[+] Author Affiliations
Craig Robin, Iyad Dajani, Christopher Vergien, Clint Zeringue, Thomas M. Shay

Air Force Research Lab. (USA)

Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 75801I (February 17, 2010); doi:10.1117/12.842566
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From Conference Volume 7580

  • Fiber Lasers VII: Technology, Systems, and Applications
  • Kanishka Tankala
  • San Francisco, California, USA | January 23, 2010

abstract

We report on experimental and theoretical investigations of single frequency high power PCF amplifiers. A model describing the interplay among laser gain, thermals effects, and SBS was developed to study the power limitations of single frequency amplifiers in general, and PCF amplifiers in particular. A distributed noise term was used to initiate the SBS process with the Stokes light spanning multi-frequency channels. The use of thermal and acoustic gradients in conjunction was considered and indicated marginal improvement. In the set of experiments, slope efficiencies as high as 77% were obtained with a maximum output of 427 W. The linewidth was measured and yielded values that were less than 10 KHz. A pump-probe measurement of the Brillouin gain spectrum revealed secondary peaks lying at the highfrequency side. Measurements conducted on a novel PCF, specifically designed to utilize thermal and acoustic gradients in conjunction, showed the existence of two primary gain peaks.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Craig Robin ; Iyad Dajani ; Christopher Vergien ; Clint Zeringue and Thomas M. Shay
"Experimental and theoretical studies of single frequency PCF amplifier with output of 400 W", Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 75801I (February 17, 2010); doi:10.1117/12.842566; http://dx.doi.org/10.1117/12.842566


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