Stable high-power Er:YAG ceramic single-frequency laser at 1645 nm

Lei Wang; Qing Ye; Mingwei Gao; Chunqing Gao; Sijia Wang

doi:10.1364/OE.24.014966

Stable high-power Er:YAG ceramic single-frequency laser at 1645 nm

Lei Wang, Qing Ye, Mingwei Gao, Chunqing Gao, Sijia Wang

School of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

A stable high-power single-frequency laser at 1645 nm from a monolithic Er:YAG ceramic nonplanar ring oscillator (NPRO) was demonstrated. 10.7 W single-frequency laser output was obtained with a slope efficiency of 61.2% and an optical efficiency of 52.1% with respect to incident pump power. The laser always stably operated in singlefrequency mode with the pump power increasing from threshold to maximum pump power. When the crystal's set temperature changed from 17.2°C to 26.6°C, the Er:YAG ceramic NPRO had stable single-frequency laser output, and the widest continuous tuning range without mode-hoping was 4.5 GHz. The linewidth of the single-frequency laser was 5.75 kHz. The beam quality M² factors were 1.23 and 1.24 in x and y directions, respectively.

Original language	English
Pages (from-to)	14966-14973
Number of pages	8
Journal	Optics Express
Volume	24
Issue number	13
DOIs	https://doi.org/10.1364/OE.24.014966
Publication status	Published - 27 Jun 2016

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Wang, L., Ye, Q., Gao, M., Gao, C., & Wang, S. (2016). Stable high-power Er:YAG ceramic single-frequency laser at 1645 nm. Optics Express, 24(13), 14966-14973. https://doi.org/10.1364/OE.24.014966

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abstract = "A stable high-power single-frequency laser at 1645 nm from a monolithic Er:YAG ceramic nonplanar ring oscillator (NPRO) was demonstrated. 10.7 W single-frequency laser output was obtained with a slope efficiency of 61.2% and an optical efficiency of 52.1% with respect to incident pump power. The laser always stably operated in singlefrequency mode with the pump power increasing from threshold to maximum pump power. When the crystal's set temperature changed from 17.2°C to 26.6°C, the Er:YAG ceramic NPRO had stable single-frequency laser output, and the widest continuous tuning range without mode-hoping was 4.5 GHz. The linewidth of the single-frequency laser was 5.75 kHz. The beam quality M2 factors were 1.23 and 1.24 in x and y directions, respectively.",

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Stable high-power Er:YAG ceramic single-frequency laser at 1645 nm

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