Journal
IEEE PHOTONICS JOURNAL
Volume 13, Issue 3, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2021.3078131
Keywords
Licenses; Measurement by laser beam; Wavelength measurement; Oscillators; Laser excitation; Laser beams; Detectors; Ho; YAG MOPA; long-wave infrared; ZGP OPO; solid state lasers
Funding
- National Natural Science Foundation of China (NSFC) [62005300]
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A narrow pulse-width long-wave infrared ZGP OPO pumped by a Ho:YAG MOPA was demonstrated, achieving a minimum pulse width of 12 ns and a maximum average output power of 73.1 W.
We demonstrated a narrow pulse-width long-wave infrared ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a 2.1 mu m Ho:YAG master oscillator power-amplifier (MOPA). By short-cavity structure, a minimum pulse width of similar to 12 ns was achieved at 1kHz, 2kHz and 3kHz in Ho:YAG oscillator. By employing a three-stage amplifier, a maximum average output power of 73.1 W with pulse width of similar to 17 ns at the pulse repetition frequency of 3 kHz was obtained. Then a ZGP OPO pumped by the Ho:YAG MOPA was demonstrated. The maximum average output powers of 5.48 W at 8.2 mu m and 22.4 W at 2.8 mu m were obtained, corresponding to the pulse width of <10 ns.
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