20 February 2008 Hybrid fiber MOPA-bulk amplifier system for frequency conversion
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We report on a hybrid fiber MOPA + solid-state amplifier for frequency conversion and compare a hybrid scheme versus all- fiber MOPA. Using a thoroughly designed master oscillator and optimized fiber amplifiers we were able to achieve 15-30ns long pulses at average powers above 20 W with a good spectral quality and suppressed SBS. Bulk Vanadate amplifiers boosted the 1064nm output power to greater 65W at pulse repetition rates of 300-500 kHz. More than 35 W in green and 20 W of UV light has been obtained at pulse repetition rates above 300 kHz and pulse energies of 30-100 μJ.
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Andrei N. Starodoumov, Dave Dudley, Stuart McLean, Alexander Steinmetz, Norman Hodgson, "Hybrid fiber MOPA-bulk amplifier system for frequency conversion", Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68710V (20 February 2008); doi: 10.1117/12.766765; https://doi.org/10.1117/12.766765

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