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A high power intracavity optical parametric oscillator (OPO) with a type Ⅱ KTiOPO4(KTP) is reported. The OPO is placed in a high power, linearly polarized diode-side-pumped Nd∶YAG laser cavity. By a suitable design of the OPO cavity, a maximum of 295 W at 2?μm is reached with repetition rate of 5?kHz. The output power characteristic of OPO is investigated. The fluctuation of OPO output power in less than 1.4%.
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Keywords:
- OPO /
- 2?μm laser /
- KTP crystal /
- DRO







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