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Opt Express. 2010 Jun 7;18(12):12161-7. doi: 10.1364/OE.18.012161.

High efficient single-frequency output at 1991 nm from a diode-pumped Tm:YAP coupled cavity.

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  • 1School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China.

Abstract

A coupled resonator was developed for high efficient room-temperature single-frequency laser operating near 2 mum optical spectral region. 721 mW stable single-longitudinal-mode oscillation at 1991 nm was obtained when the absorbed pumping power was 2.4 W. The optical-to-optical efficiency was 30%, and the slope efficiency was 46%. 5 nm of frequency tuning range was obtained with stable output power. The beam propagation factors M2 were 1.43 and 1.42 in x and y directions, respectively.

PMID:
20588339
[PubMed]
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