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We report in this work a continuous wave(CW) narrowband 589 nm light generation for the purpose of laser guide assisted adaptive optics.A 39 mm long 1 mm thick periodically poled near stoichiometric LiTaO3 crystal with duty cycle near 50% was fabricated using electrical poling at room temperature and pumped by a Raman fiber amplifier.We tested two temperature control ovens,and a maximum conversion efficiency of about 14.3%,corresponding to 4 W of yellow light with 28 W of fundamental power,and bandwidth less than 0.18 GHz was achieved.
We report in this work a continuous wave (CW) narrowband 589 nm light generation for the purpose of laser guide adaptive adaptive optics. A 39 mm long 1 mm thick periodically poled near stoichiometric LiTaO3 crystal with duty cycle near 50% was fabricated using electrical poling at room temperature and pumped by a Raman fiber amplifier. We tested two temperature control ovens, and a maximum conversion efficiency of about 14.3%, corresponding to 4 W of yellow light with 28 W of fundamental power, and bandwidth less than 0.18 GHz was achieved .