Title:
位相変調子、位相変調子組体及び光センサ
Document Type and Number:
Japanese Patent JP5268367
Kind Code:
B2
Abstract:
The present invention provides a photosensor that uses a phase modulation technique for optical detection and conducts a highly accurate measurement. The photosensor uses a phase change difference of light propagated through a polarization preserving fiber with respect to tensile stress and employs proper polarization preserving fibers for a phase modulator 10, light-transmitting polarization preserving fiber 23, and coil-shaped polarization preserving fiber 30, to achieve a highly accurate measurement.
Inventors:
Kinichi Sasaki
Masao Takahashi
Hamaguchi Masahiro
Takashi Miyabe
Go Kuwahara
Tomohiro Umemura
Masao Takahashi
Hamaguchi Masahiro
Takashi Miyabe
Go Kuwahara
Tomohiro Umemura
Application Number:
JP2008003540A
Publication Date:
August 21, 2013
Filing Date:
January 10, 2008
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Industrial Equipment Manufacturing Co., Ltd.
Toshiba Industrial Equipment Manufacturing Co., Ltd.
International Classes:
G01H9/00; G01D5/353; G02F1/015; G01C19/72; G02B6/024
Domestic Patent References:
| JP2163709A | ||||
| JP1238297A | ||||
| JP2021213A | ||||
| JP6167628A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu