Optical communications – Transmitter and receiver system – Including compensation
Reexamination Certificate
2004-11-08
2008-11-25
Sedighian, M. R. (Department: 2613)
Optical communications
Transmitter and receiver system
Including compensation
C398S159000, C398S151000, C398S119000
Reexamination Certificate
active
07457547
ABSTRACT:
In an optical system including an optical input port for projecting an input optical signal onto an optical phased matrix array, an optical phased matrix array including a plurality of individually addressable pixels thereon, each said pixel being drivable within a prescribed range of levels, and an optical output port for collecting a predetermined fraction of said optical signal received from said optical phased matrix array; a method of compensating for phase distortions including the steps of: (a) determining a plurality of transfer functions relating said level of each said pixel to the phase variation each said pixel introduces to light from said input optical signal which is incident thereon; and (b) controlling the level of selected ones of said pixels in accordance with a corresponding transfer function such that said fractional signal received at said output port is modified in phase to substantially compensate for optical phase distortions arising from said optical phased matrix array.
REFERENCES:
patent: 6674519 (2004-01-01), Mui
patent: 6735012 (2004-05-01), Hunt
patent: 7292790 (2007-11-01), Sardesai
patent: 7369773 (2008-05-01), Weiner
patent: 2005/0024613 (2005-02-01), Bleeker
Abakoumov Dmitri
Baxter Glenn W.
Frisken Steven J.
Zhou Hao
Optium Australia Pty Limited
Rauschenbach Kurt
Rauschenbach Patent Law Group, LLC
Sedighian M. R.
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