Optical communications – Optical communication over freee space
Reexamination Certificate
2011-08-09
2011-08-09
Le, Uyen Chau N (Department: 2874)
Optical communications
Optical communication over freee space
C398S209000, C398S212000, C398S214000, C385S015000
Reexamination Certificate
active
07995925
ABSTRACT:
An optical beam combiner is provided, which allows efficient collection of light for various applications: non-line of sight and free space optical communications, remote sensing, optical imaging and others. A multitude of transverse scattered optical beam portions is captured by the multi-aperture array positioned perpendicular to the beam projection direction. These beam portions are combined first into a single optical waveguide with minimal loss of power. This is achieved by modulating the beam portions phase and coupling ratio of couplers in the optical beam combiner tuned to maximize the final output power. The data is recovered from the received optical beam using coherent detection.
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Cho Pak Shing
Khurgin Jacob
Shpantzer Isaac
CeLight, Inc.
Chu Chris
Le Uyen Chau N
Reingand Nadya
LandOfFree
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