Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
John A Rogers0
Todd R. Salamon0
Date of Patent
February 15, 2005
0Patent Application Number
104109310
Date Filed
April 10, 2003
0Patent Citations Received
Patent Primary Examiner
Patent 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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