Title:
FIBER OPTIC GYROSCOPE WITH FRONT END POLARIZER
Document Type and Number:
Japanese Patent JP2014098697
Kind Code:
A
Abstract:
To provide a fiber optic gyroscope (FOG) with an enhanced polarization extinction ratio (PER).
A fiber optic gyroscope (FOG) 40 comprises: a depolarizer 46 that receives light from a light source 42; a multifunction integrated optic chip (MIOC) 50; a sensing coil 52 coupled to outputs of the MIOC 50; a polarizer 48 coupled between an output of the depolarizer 46 and an input of the MIOC 50. The polarizer 48 mitigates the polarization non-reciprocity (PNR) bias error and enhances the polarization extinction ratio (PER) of the FOG.
Inventors:
DANIEL A TAZARTES
BASSAM S DIMASHKIE
BASSAM S DIMASHKIE
Application Number:
JP2013234051A
Publication Date:
May 29, 2014
Filing Date:
November 12, 2013
Export Citation:
Assignee:
NORTHROP GRUMMAN GUIDANCE & EL
International Classes:
G01C19/64
Domestic Patent References:
| JPH05149752A | 1993-06-15 | |||
| JP2002502021A | 2002-01-22 | |||
| JP2010078591A | 2010-04-08 |
Foreign References:
| US5260768A | 1993-11-09 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Natsuki Morishita
Takatoshi Iida
Daisuke Ishikawa
Kensaku Yamamoto
Natsuki Morishita
Takatoshi Iida
Daisuke Ishikawa
Kensaku Yamamoto