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Proceedings Paper

Optimum design and experimental study of tunable dual-frequency Nd:YAG laser with large frequency difference
Author(s): Junhong Xing; MIngxing Jiao; Yun Liu; Lei Chen
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Paper Abstract

In order to obtain the output of tunable dual-frequency laser with large frequency difference, a scheme has been designed for diode-pumped two-cavity dual-frequency Nd:YAG laser, which is based on the principle of laser longitudinal mode selection by use of intra-cavity birefringent filter. The feasibility of simultaneously oscillated dual-frequency Nd:YAG laser output has been experimentally verified when a novel birefringent filter consisting of a polarizing beam-splitter and a half wave-plate (i.e. PBS-λ/2) as a laser longitudinal mode selector. The advantages and disadvantages of the dual-frequency Nd:YAG laser have been analyzed and an optimum design scheme of dual-frequency Nd:YAG laser at 1064nm has been proposed and experimentally investigated. In the optimum scheme, both output couplers of the straight and right angle standing-wave cavities have been chosen to be made from calcite crystal plates, and such birefringent output couplers together with the intra-cavity common piece of PBS element constitute two independent birefringent filters acting as laser axial mode selectors. The p-and s-component of 1064nm laser light can therefore be forced to oscillate simultaneously in single longitudinal mode in the straight and right angle cavities, respectively, and the frequency difference of dual-frequency laser can be tuned by changing each cavity-length. The experimentally obtained results indicate that the tuning range of frequency difference of dual-frequency laser at 1064nm has been expanded from the previous range of 27~113.4GHz to the present range of 11.9~148.4GHz when an optimum scheme is used.

Paper Details

Date Published: 31 December 2010
PDF: 6 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 754450 (31 December 2010); doi: 10.1117/12.885440
Show Author Affiliations
Junhong Xing, Xi'an Univ. of Technology (China)
MIngxing Jiao, Xi'an Univ. of Technology (China)
Yun Liu, Xi'an Univ. of Technology (China)
Lei Chen, Xi'an Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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