Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2006-06-20
2006-06-20
Berman, Jack I. (Department: 2881)
Optical waveguides
With optical coupler
Particular coupling structure
C385S051000
Reexamination Certificate
active
07065276
ABSTRACT:
A filtering method and optical filter structure are presented. The structure comprises an input waveguide, an output waveguide, and a filter stage formed by at least one closed loop resonator optically coupled to the input and output waveguides. A level of the coupling from each of the waveguides to the resonator is at least 5 times greater than a loss-per-revolution of the resonator. The filter structure thus provides for reducing a bandwidth and insertion loss while filtering at least one optical channel from a multi-channel light signal.
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Bortman-Arbiv Daphna
Margalit Moti
Scheuer Jacob
Berman Jack I.
Ladas & Parry
Lambda Crossing Ltd.
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