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Proceedings Paper

Investigation of diode-pumped 1064nm dual-frequency Nd:YAG laser with large frequency difference
Author(s): Mingxing Jiao; Junhong Xing; Yun Liu; Yun Yang
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Paper Abstract

When a new birefringent filter consisting of a polarizing beam splitter (PBS) and a half wave-plate (&lgr;/2), i.e., PBS-&lgr;/2 was included in a 1064nm Nd:YAG laser cavity, the laser was enforced to oscillate in single longitudinal mode. The single longitudinal mode selecting ability of the intra-cavity filter of PBS-&lgr;/2 had been studied experimentally by rotating the half wave-plate around the laser cavity axis, and the tuning characteristics of the single-frequency laser output power versus the rotation angle of the half wave-plate had also been studied. An orthogonally and linearly polarized dual-frequency Nd:YAG laser at 1064nm had been designed and demonstrated, which included two standing-wave cavities sharing the same gain medium of Nd:YAG crystal and the birefringent filter of PBS-&lgr;/2, the p-and s-components of the 1064nm laser light simultaneously oscillated in single longitudinal mode in each cavity. The frequency-difference of the dual-frequency laser at 1064nm was measured to be approximately 1.87GHz, limited by the free spectral range of the scanning Fabry-Perot interferometer. It is predicted theoretically that the frequency-difference of the dual-frequency laser at 1064nm can be tuned in a range from zero up to the lasing bandwidth of the Nd:YAG laser.

Paper Details

Date Published: 12 January 2009
PDF: 7 pages
Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71332W (12 January 2009); doi: 10.1117/12.812415
Show Author Affiliations
Mingxing Jiao, Xi'an Univ. of Technology (China)
Junhong Xing, Xi'an Univ. of Technology (China)
Yun Liu, Xi'an Univ. of Technology (China)
Yun Yang, Xi'an Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7133:
Fifth International Symposium on Instrumentation Science and Technology
Jiubin Tan; Xianfang Wen, Editor(s)

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