Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-02-08
2005-02-08
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Input/output coupler
C385S052000
Reexamination Certificate
active
06853772
ABSTRACT:
A tunable interferometer for creating an interference pattern of variable periodicity at a fixed location is disclosed. The interferometer includes an optical element for splitting an input beam into a first write beam and a second write beam which are parallel to one another and have a variable distance therebetween. The interferometer also includes a beam directing element for receiving the parallel first and second write beams to intersect at the fixed location with an angle of intersection which is a function of the variable distance between the parallel first and second write beams received.
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Y. Wang, et al; “Modified Talbot Interferometer for Fabrication of Fiber-Optic Grating Filter Over a Wide Range of Bragg Wavelength and Bandwidth Using a Single Phase Mask”,IEEE Journal of Lightwave Technology(Oct. 2001); vol. 19, No. 10, pp. 1569-1573.
Battiato James M.
Simbal John J.
3M Innovative Properties Company
Font Frank G.
Kianni K. Cyrus
Rosenblatt Gregg H.
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