Photonic crystal interferometric fiber optical gyroscope system

Details Photonic crystal interferometric fiber optical gyroscope system Photonic crystal interferometric fiber optical gyroscope system

2007-02-20

2007-02-20

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

C385S012000

Reexamination Certificate

active

10712702

ABSTRACT:
A photonic crystal interferometric optical gyroscope system including a light source for providing a primary beam of light, a photonic crystal sensing coil having a rotational axis, and a beam controlling device configured to split the primary beam into first and second counter-propagating beams in the photonic crystal sensing coil and configured to direct return of the counter-propagating beams wherein the power of the returning counter-propagating beams represents the phase shift between the counter-propagating beams and is indicative of the rate of rotation of the coil about the rotational axis.

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patent: 2004/0061863 (2004-04-01), Digonnet
patent: 2006/0145063 (2006-07-01), Steinberg et al.
Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with reduced temperature sensitivity, Kim et al, Optics Express, Sep. 2004.

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