Heat tunable optical devices with linearity compensation

Details Heat tunable optical devices with linearity compensation Heat tunable optical devices with linearity compensation

2005-02-15

2005-02-15

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S010000, C385S049000

Reexamination Certificate

active

06856731

ABSTRACT:
Wide range linear tuning of optical gratings is possible by selecting a thin film heater such that the temperature variation in heater's resistivity ρ matches the temperature variation in the heat transfer coefficient of air h. A tunable optical device, such as a fiber grating with such a grating heater, exhibits near linear tuning characteristics over a wide range of temperatures and tuning currents. The heater is useable in other heat tunable optical devices such as interferometers.

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