Intracavity frequency doubling of an active Q-switched Nd:YAG laser with 2.25 W output power at 473 nm |
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| Authors: | Yahui Chen Wei Hou Hengli Zhang Hongbo Zhang Dafu Cui |
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| Affiliation: | a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
b Graduate School of the Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | An active Q-switched diode-end-pumped Nd:YAG laser is reported with 2.9 W output power on the 4F3/2 → 4I9/2 transitions at a pump power of 24 W. With intracavity frequency doubling using a 20-mm-long LBO, a maximum blue output power of 2.25 W is achieved at a repetition rate of 23 kHz. The conversion efficiency from the corresponding Q-switched fundamental output to blue output is 96%. The peak power of the Q-switched blue pulse is up to 610 W with 160 ns pulse width. The fluctuation of the blue output power is less than 4.0% at the maximum output power. |
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| Keywords: | 4.55.Rz 42.55.Xi 42.65.Ky 42.60.Gd |
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