Optical receiver and a free-space optical communications...

Details Optical receiver and a free-space optical communications... Optical receiver and a free-space optical communications...

2011-07-05

2011-07-05

Peace, Rhonda (Department: 2874)

Optical communications

Receiver

Including optical element

C385S015000, C398S209000, C398S214000

Reexamination Certificate

active

07974543

ABSTRACT:
A device for phase distortion compensation across an optical beam is provided. The device is a part of an optical receiver, which can be used in free space optical communications, remote sensing, optical imaging and others. 2Minputs of the combiner interfere with each other via a system of tunable coupled waveguides. The phases in interleaved waveguides of the combiner are adjusted to maximize the resulting output signal. The combiner may be used for coherent communication in combination with a balanced 90° hybrid. Integrated solutions for the proposed device are provided.

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patent: 2009/0034967 (2009-02-01), Tao et al.
patent: 2009/0279902 (2009-11-01), Granot et al.

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