LASER-DIODE PHASE-SHIFTING INTERFEROMETRY WITH A SELF-PUMPED PHASE-CONJUGATE MIRROR

被引：13
作者：
ISHII, Y
UEHIRA, I
机构：
[1] Department of Electronics, University of Industrial Technology, Sagamihara, Kanagawa, 229
来源：
OPTICS LETTERS | 1993年 / 18卷 / 17期
关键词：
D O I：
10.1364/OL.18.001459
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A laser-diode phase-measuring interferometer with a BaTiO3 self-pumped phase-conjugate mirror is presented that is based on a phase-shifting technique with a stepwise wavelength change by variation of the laser-diode current. The phase is shifted to produce a spatially uniform phase difference uncanceled by a phase conjugator between the beams in the two arms of the interferometer. The dc light buildup phase-conjugate reflectivities with a maximum of 60% versus time are measured for different incident angles to the crystal. The visibility of the interferograms is estimated by varying the pump-beam frequency of the laser diode. Experimental results of the phase measurement with a four-step method are shown.
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页码：1459 / 1461
页数：3
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