Abstract - An all-fiber high-power picosecond laser is constructed in a master oscillator power amplifier configuration. The self-constructed fiber laser seed is passively mode locked by a semiconductor saturable absorber mirror. Average output power of 157 W is obtained after three stages of amplification at a fundamental repetition rate of 60 MHz. A short length of ytterbium double-clad fiber with a high doping level is used to suppress nonlinear effects. However, a stimulated Raman scattering (SRS) effect occurs owing to the 78 kW high peak power. A self-made all-fiber repetition rate increasing system is used to octuple the repetition rate and decrease the high peak power. Average output power of 156.6 W is obtained without SRS under the same pump power at a 480 MHz repetition rate with 0.6 nm line width.
Citation
Rui Song, Jing Hou, Shengping Chen, Weiqiang Yang, and Qisheng Lu, "157 W all-fiber high-power picosecond laser," Appl. Opt. 51, 2497-2500 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-13-2497
History
Original Manuscript: September 21, 2011
Revised Manuscript: December 7, 2011
Manuscript Accepted: December 7, 2011
Published: May 1, 2012
Source: Optical Society of America
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