Stabilization of a channeled spectropolarimeter by self-calibration

被引:67
作者
Taniguchi, Atsushi [1 ]
Oka, Kazuhiko
Okabe, Hiroshi
Hayakawa, Masayuki
机构
[1] Hokkaido Univ, Grad Sch Engn, Div Appl Phys, Sapporo, Hokkaido 0608528, Japan
[2] Omron Corp, Technol Dev Ctr HQ, Kyoto 6190283, Japan
关键词
D O I
10.1364/OL.31.003279
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A novel method to stabilize a channeled spectropolarimeter is described. The fluctuating retardations of the high-order retarders used in the spectropolarimeter are calibrated in parallel to the measurement of the wavenumber-dependent state of polarization (SOP) of light. Both the calibration of the retarders and the measurement of the SOP can be made simultaneously using a single light to be measured, and hence the resultant wavenumber-dependent SOP is almost immune to fluctuation of the retardations. The effectiveness of this method is experimentally demonstrated with retardation fluctuations induced by a temperature change up to 40 degrees C. (c) 2006 Optical Society of America.
引用
收藏
页码:3279 / 3281
页数:3
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