Circulator and polarization beam combiner

Details Circulator and polarization beam combiner Circulator and polarization beam combiner

2007-09-25

2007-09-25

Allen, Stephone B. (Department: 2872)

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

C359S494010, C359S490020

Reexamination Certificate

active

10387648

ABSTRACT:
System and techniques for reducing the polarization dependency of an optical component by combining the actions of a circulator and a polarization beam combiner to separate an optical signal into a plurality of orthogonally oriented polarization components; rotate at least one of the components so that the polarization orientation of the components are parallel; propagate the components through respective input ports of an optical component at substantially the same time; rotate at least one of a plurality of output components from the optical component so that the polarization orientation of the output components are orthogonal; and recombine the plurality of output components into an output optical signal.

REFERENCES:
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patent: 5930039 (1999-07-01), Li et al.
patent: 5982539 (1999-11-01), Shirasaki
patent: 6049426 (2000-04-01), Xie et al.
patent: 6175448 (2001-01-01), Xie et al.
patent: 6178044 (2001-01-01), Li et al.
patent: 6212008 (2001-04-01), Xie et al.
patent: 6373604 (2002-04-01), Xie
patent: 6674968 (2004-01-01), Xie
patent: 6795242 (2004-09-01), Pan et al.
patent: 2006/0098205 (2006-05-01), Townley-Smith et al.

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