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High-efficiency 1040 and 1078 nm laser emission of a Yb:Y_2O_3 ceramic laser with 976 nm diode pumping

2007; Optica Publishing Group; Volume: 32; Issue: 3 Linguagem: Inglês

10.1364/ol.32.000247

1539-4794

Hong Jin Kong, D. Y. Tang, Chi Chiu Chan, J. Lu, K. Ueda, Hideki Yagi, T. Yanagitani,

Advanced Fiber Laser Technologies

We report a high-efficiency diode-end-pumped polycrystalline Yb:Y2O3 ceramic laser. Pumped by a 976 nm laser diode bar and with an absorbed pump power of 2.8 W, cw output power of 1.74 W at 1078 nm, and 0.73 W at 1040 nm were obtained. The slope efficiency was measured to be 82.4% for the 1078 nm laser emission and 57.1% for the 1040 nm laser emission.