1 May 2006 End-pumped continuous-wave passively mode-locked Nd:YVO4 laser with low pump power
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A simple cw mode-locked solid-state laser, which is end-pumped by a low-power laser diode, was demonstrated by optimizing the laser-mode size inside the gain medium. The optimum ratio between mode and pump spot sizes inside the laser crystal was estimated for a cw mode-locked laser, taking into account the input pump power. Calculation and experiment have shown that the optimum ratio was about 3 when the pump power is 2 W, which is different from the value regularly used in passively mode-locked solid-state lasers. This conclusion is also helpful in increasing the efficiency of high-power ultrashort lasers.
© (2006) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yang Liu, Yang Liu, Liqun Sun, Liqun Sun, Yonggang Wang, Yonggang Wang, Hongyun Qiu, Hongyun Qiu, Qian Tian, Qian Tian, Xiaoyu Ma, Xiaoyu Ma, "End-pumped continuous-wave passively mode-locked Nd:YVO4 laser with low pump power," Optical Engineering 45(5), 054201 (1 May 2006). https://doi.org/10.1117/1.2202645 . Submission:

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