Fiber optic gyroscope having optical integrated circuit,...

Details Fiber optic gyroscope having optical integrated circuit,... Fiber optic gyroscope having optical integrated circuit,...

2007-03-13

2007-03-13

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

Optics: measuring and testing

By light interference

Rotation rate

C385S012000

Reexamination Certificate

active

10797731

ABSTRACT:
A light source10is connected sequentially through a single mode optical fiber and a coupler to one end of a polarization maintaining optical fiber, the other end of which is connected to an optical waveguide of an optical integrated circuit having a branching optical waveguide which has a polarizing function with the polarization axis of the optical fiber being coincident with the direction of the TE mode in the optical waveguide. One end of each of polarization maintaining optical fibers are connected to two other ends of the optical waveguide with the polarization axis of the optical fibers being coincident with the direction of the TE mode in the optical waveguide. The other ends of the optical fibers are connected to one end of each of polarization maintaining optical fibers with their polarization axis displaced by an angle of 45° from each other. The other ends of the optical fibers are connected to the opposite ends of a single mode fiber optic coil.

REFERENCES:
patent: 5136667 (1992-08-01), Ohno et al.
patent: 5245407 (1993-09-01), Nishiura et al.
patent: 5475772 (1995-12-01), Hung et al.
patent: 5854678 (1998-12-01), Liu et al.
patent: 6175410 (2001-01-01), Szafraniec et al.
patent: 6801319 (2004-10-01), Szafraniec et al.
patent: 6990269 (2006-01-01), Ohno et al.
patent: 195 02 519 (1996-08-01), None
patent: 0 260 885 (1988-03-01), None
patent: 0 760 461 (1997-03-01), None
patent: 8029184 (1996-02-01), None
patent: 2000-513812 (2000-10-01), None
patent: WO 98/00682 (1998-01-01), None
patent: WO-03/060427 (2003-07-01), None
Ohno, Aritaka, et al., “Intermediate and moderate grade Fiber Optic Gyroscope for industrial applications,” SPIE vol. 2292 Fiber Optic and Laser Sensors XII (1994), pp. 166-176.
Usui, Ryuji, et al., “Intermediate Grade FOG with Single Mode Fiber Coil,” SPIE vol. 2070 Fiber Optic and Laser Sensors XI (1993), pp. 152-163.

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