Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2006-07-04
2006-07-04
Lee, John R. (Department: 2881)
Optical waveguides
With optical coupler
Plural
C385S034000, C385S014000
Reexamination Certificate
active
07072540
ABSTRACT:
The thin-film optical filters and transmitted-light collimators of a multistage optical multiplexer/demultiplexer apparatus are assembled by locating the thin-film optical filters so that an incident light beam is incident upon and reflected sequentially from each thin-film optical filter to the next thin-film optical filter, and orienting each thin-film optical filter to produce a respective angle-of-incidence of the incident light beam on the thin-film optical filter so that a desired transmitted light beam is transmitted therethrough with a maximum intensity. The transmitted-light collimators are positioned to receive the respective transmitted light beams with minimal insertion loss. The respective steps of positioning are performed independently of, but after, the respective steps of orienting for each multiplexer/demultiplexer stage.
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Szapiel Stanislaw
Whitty James R.
Johnston Phillip A.
Lee John R.
Raytheon Company
Schubert William C.
Vick Karl A.
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