Diode-pumped single-frequency Tm:YAG NPRO laser by using different pumping spot sizes

Zhifeng LIN; Chunqing GAO; Mingwei GAO; Yunshan ZHANG; Lingni ZHU; Yan ZHENG

doi:10.1007/s12200-009-0067-z

Frontiers of Optoelectronics, Volume. 2, Issue 4, 410(2009)

Diode-pumped single-frequency Tm:YAG NPRO laser by using different pumping spot sizes

Zhifeng LIN, Chunqing GAO^*, Mingwei GAO, Yunshan ZHANG, Lingni ZHU, and Yan ZHENG

Author Affiliations

School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China

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This paper presents the experimental results of the monolithic Tm:YAG nonplanar ring oscillator (NPRO) pumped by two kinds of laser diodes with different pumping spot sizes. By longitudinal pumping in continuous-wave operation, a single-frequency output power of 404mW was obtained at room temperature, with a slope efficiency of 48.2%. The influences of the pumping spot sizes on the beam properties were also discussed.

Keywords

laser diode nonplanar ring oscillator (NPRO)pumping spot size Tm:YAG laser

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Zhifeng LIN, Chunqing GAO, Mingwei GAO, Yunshan ZHANG, Lingni ZHU, Yan ZHENG. Diode-pumped single-frequency Tm:YAG NPRO laser by using different pumping spot sizes[J]. Frontiers of Optoelectronics, 2009, 2(4): 410

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Paper Information

Received: Aug. 14, 2009

Accepted: Aug. 21, 2009

Published Online: Oct. 8, 2012

The Author Email: GAO Chunqing (gao@bit.edu.cn)

DOI:10.1007/s12200-009-0067-z

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology