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15 February 2012 An all-fiber PM MOPA pumped high-power OPO at 3.82 μm based on large aperture PPMgLN
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Abstract
We report a large aperture PPMgLN based OPO generating 21W of average output power at a slope efficiency of 45%, pumped by the output from a polarization maintaining Ytterbium doped fiber MOPA operating at 1060nm producing 58W of average output power and 20ns pulses at a repetition rate of 100kHz. A maximum of 5.5W of optical power was recorded at the idler wavelength of 3.82μm without thermal roll-off. We have experimentally verified that the pulse rise/fall time plays a significant role in the OPO conversion efficiency and that further enhancement in the OPO conversion efficiency will be possible using sub-nanosecond rise and fall times.
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Dejiao Lin, Shaif-ul Alam, Yonghang Shen, Tao Chen, and David J. Richardson "An all-fiber PM MOPA pumped high-power OPO at 3.82 μm based on large aperture PPMgLN", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82371K (15 February 2012); https://doi.org/10.1117/12.906364
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