19 August 2011 High power single frequency linear-polarized all-fiber MOPA system for coherent detection
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Abstract
In the paper, we reported a single-frequency(SF), single-mode(SM), linear-polarized ytterbium-doped all-fiber master oscillator power amplifier (MOPA) system consisting of two stage amplifier which could be used in coherent detection. With a pump power of 17.5W at 976nm, the system emitted up to 12.7 W of single-frequency radiation at a wavelength of 1064 nm with the polarization-extinction ratio (PER) more than 35dB and signal-to-noise ratio (SNR) more than 40dB. The final-stage amplifier operated with a high conversion efficiency of 73% and the gain of the whole amplifier achieved 31 dB, it has nearly diffraction-limited beam quality.
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Ya-qian Ding, Ya-qian Ding, Yun-feng Qi, Yun-feng Qi, Chi Liu, Chi Liu, Jing He, Jing He, Jun Zhou, Jun Zhou, } "High power single frequency linear-polarized all-fiber MOPA system for coherent detection", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81922O (19 August 2011); doi: 10.1117/12.900734; https://doi.org/10.1117/12.900734
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