Appeal 2007-2202
Application 10/608,169
INVENTION
The invention is directed to photonic circuits that can be variably tuned to
select or filter a spectrum of light. See page 1 of Appellants’ Specification. Claim
1 is representative of the invention and reproduced below:
1. A photonic circuit comprising:
a resonator;
means for heating said resonator;
means for measuring a temperature of said resonator;
means for coupling said temperature measuring means to said heating
means; and
logic associating one or more frequencies of light to one or more
temperatures of said resonator;
wherein said temperature measuring means monitors said temperature
of said resonator and transmits signals to said heating means based on said
temperature and said logic; and further
wherein said heating means is enabled or disabled so that said
resonator is maintained at a precise temperature and selectively filters a
frequency of light corresponding to said temperature.
REFERENCES
Schwindt US 6,720,782 B2 Apr. 13, 2004
(filed Oct. 17, 2002)
Ueda US 6,498,878 B1 Dec. 24, 2002
(filed Sep. 7, 2000)
Eggleton US 6,438,277 B1 Aug. 20, 2002
(filed Jun. 3, 1999)
Koizumi US 5,696,543 Dec. 9, 1997
Huber US 5,159,601 Oct. 27, 1992
2
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