A high polarization microchip green laser with dual Nd:YVO4 crystal

A high polarization Nd:YVO4/KTP laser with dual crossed gain crystal is reported. Using two optical axis orthogonal Nd:YVO4 crystal as gain medium, eliminating the depolarization effect of single Nd:YVO4 crystal, the high polarization green laser is obtained. With 1.8W diode laser pump power the out...

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Bibliographic Details
Published in:Optics and laser technology 2012-03, Vol.44 (2), p.370-373
Main Authors: Lin, H.F., Zhu, W.Z., Xiong, F.B., Mu, R.Z., Huang, Y.Q.
Format: Article
Language:English
Subjects:
Batch production
Conversion
Crystals
Gain
Lasers
Low cost
Polarization
Pumps
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Summary:A high polarization Nd:YVO4/KTP laser with dual crossed gain crystal is reported. Using two optical axis orthogonal Nd:YVO4 crystal as gain medium, eliminating the depolarization effect of single Nd:YVO4 crystal, the high polarization green laser is obtained. With 1.8W diode laser pump power the output power of TEM00 green laser is 366mW, the light-light conversion efficiency is up to 20.3%, and the polarization ratio is 110:1. This laser has the advantages of being simple and easily attainable at a low cost, and it is suitable for batch production.
ISSN:0030-3992
DOI:10.1016/j.optlastec.2011.07.018