Abstract

With graphene as a saturable absorber, the efficient and stable 1.4 μm dual-wavelength operation of Nd:YAG ceramic laser is demonstrated. A maximum total average output power of 601 mW is obtained under the pump power of 22.3 W, corresponding to an optical-optical conversion efficiency of 2.7%. The minimum pulse width and the highest pulse repetition rate are 470 ns and 101 kHz, respectively.

© 2015 Optical Society of America

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