We have developed a monolithic high power pulsed fiber laser in a master oscillator power amplifier (MOPA) configuration, which is capable of reaching 0.38 mJ pulse energy and 128 kW peak power for 3 ns pulses at while maintaining transform-limited linewidth. The fiber laser pulse seed was achieved by directly modulating a CW single-frequency fiber laser using an electro-optic modulator. We used an arbitrary waveform generator to preshape the fiber laser pulses before amplification to avoid pulse steepening and dynamic gain saturation. Single-mode, polarization maintaining highly codoped large core phosphate fibers were used in the power amplifier stages to scale the transform-limited fiber laser pulses, avoiding any nonlinearities.
© 2012 Optical Society of AmericaFull Article | PDF Article
Fabio Di Teodoro and Christopher D. Brooks
Opt. Lett. 30(24) 3299-3301 (2005)
Wei Shi, Eliot B. Petersen, Matthew Leigh, Jie Zong, Zhidong Yao, Arturo Chavez-Pirson, and Nasser Peyghambarian
Opt. Express 17(10) 8237-8245 (2009)
Andrew Malinowski, Khu Tri Vu, Kang Kang Chen, Johan Nilsson, Yoonchan Jeong, Shaiful Alam, Dejiao Lin, and David J. Richardson
Opt. Express 17(23) 20927-20937 (2009)