Temperature compensated interferometer

Details Temperature compensated interferometer Temperature compensated interferometer

2005-08-02

2005-08-02

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

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C250S227140

Reexamination Certificate

active

06924894

ABSTRACT:
A system for controlling a relative length a first optical fiber and a second optical fiber includes a first heater coupled to the first optical fiber, a second heater coupled to the second optical fiber, and a controller coupled to the first heater and the second heater. The controller operates the first heater in response to a temperature less than a predetermined temperature and operates the second heater in response to the temperature greater than the predetermined temperature. This allows the length of the optical fibers to be maintained evenly.

REFERENCES:
patent: 6317526 (2001-11-01), Shirasaki et al.
patent: 6463186 (2002-10-01), Li
patent: 6614591 (2003-09-01), Cooper et al.

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