Output response in orthogonal directions of a He-Ne laser caused by birefringent-external-cavity feedback

被引：4

作者：

Zhang, P. ^{[1
]}

Zhang, S. -L. ^{[1
]}

Tan, Y. -D. ^{[1
]}

Zhao, Z. -Q. ^{[1
]}

Zeng, Z. -L. ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Precis Measurement Technol & Instru, Dept Precis Instruments & Mechanol, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2012年 / 106卷 / 03期

关键词：

SELF-MIXING INTERFERENCE; OPTICAL FEEDBACK; SEMICONDUCTOR-LASERS; DIODE-LASER; VELOCIMETRY;

D O I：

10.1007/s00340-011-4860-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The output responses of phase, amplitude, and polarization of light intensity of a He-Ne laser with the birefringent external cavity are presented. All phenomena are observed in two orthogonal directions related to the birefringent element's orientation, and are studied under weak optical feedback. Experiments are carried out in five available detecting positions. It is found that laser intensities are modulated in the two orthogonal directions simultaneously, with a phase difference dominated by the phase retardation of the birefringence element. The modulation amplitudes are different in the two directions. A special polarization phenomenon is also observed and discussed. This research may provide a potential novel measuring principle for transparent birefringent materials.

引用

页码：657 / 662

页数：6

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