Abstract

A diode-side-pumped high-power 1319nm single-wavelength Nd:YAG continuous wave (cw) laser is described. Through reasonable coating design of the cavity mirrors, the 1064nm strongest line as well as the 1338nm one have been successfully suppressed. The laser output powers corresponding to four groups of different output couplers operating at 1319nm single wavelength have been compared. The output coupler with the transmission T=5.3% has the highest output power, and a 131W cw output power was achieved at the pumping power of 555W. The optical–optical conversion efficiency is 23.6%, and the slope efficiency is 46%. The output power is higher than the total output power of the dual-wavelength laser operating at 1319nm and 1338nm in the experiment.

© 2007 Optical Society of America

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