The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2015
Filed:
Oct. 03, 2008
Applicants:
Jun Zheng, Houston, TX (US);
Brian Ishaug, Sugar Land, TX (US);
Inventors:
Jun Zheng, Houston, TX (US);
Brian Ishaug, Sugar Land, TX (US);
Assignee:
Applied Optoelectronics, Inc., Sugar Land, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/58 (2013.01); H04B 10/2575 (2013.01); H04B 10/2557 (2013.01);
U.S. Cl.
CPC ...
H04B 10/2575 (2013.01); H04B 10/2557 (2013.01);
Abstract
A modulated optical system with cross-modulation compensation reduces or corrects cross-modulation that might occur in a multichannel RF signal modulating a laser. The system detects the cross-modulation, for example, by detecting an envelope of the RF signal or by detecting RF power fluctuations, generates a cross-modulation detection signal, and imparts a compensating cross-modulation by adjusting a bias current of the laser in response to the cross-modulation detection signal.