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Compact low threshold Cr:YAG passively Q-switched intracavity optical parametric oscillator |
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| Authors: | Jieguang Miao Jiying Peng Baoshan Wang Huiming Tan |
| Affiliation: | a Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China b Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
| Abstract: | We report a compact KTP-based intracavity optical parametric oscillator (IOPO) driven by a diode-end-pumped passively Q-switched Nd:YVO4/Cr:YAG laser. For the first time, we take the thermal lens effect of the Cr:YAG into consideration and discuss its impact on the signal output. Diode pump threshold as low as 0.52 W has been achieved, which is the lowest result reported to date. At the incident diode pump power of 4 W, we obtained the maximum signal average and peak power of 358 mW and 12.5 kW, respectively, corresponding to a diode-to-signal conversion efficiency of 9%. Moreover, cavity-dumping characteristic and pulse transforming process from 1064 to 1573 nm are qualitatively analyzed. |
| Keywords: | 42.65.Yj 42.55.Xi 42.60.Gd |
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