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:
Apr. 04, 2006
Filed:
Feb. 15, 2002
Tizhi Huang, Plano, TX (US);
Ming Xu, Plano, TX (US);
Chongchang Mao, Plano, TX (US);
Tiejun Xia, Richardson, TX (US);
Wei Feng, Plano, TX (US);
Tizhi Huang, Plano, TX (US);
Ming Xu, Plano, TX (US);
Chongchang Mao, Plano, TX (US);
Tiejun Xia, Richardson, TX (US);
Wei Feng, Plano, TX (US);
EZCONN Corporation, Taipei, TW;
Abstract
Devices and methods for equalizing the gain of an optical amplifier are described. For devices including harmonic filters that are controllable by amplitude control voltages and phase control voltages, techniques for controlling the amplitude control voltages and phase control voltages are presented. Additionally, device architectures are described by which an incoming optical signal is equalized to compensate for uneven gain in prior amplifiers or other optical components, and in which the incoming optical signal is received at a beam displacer and separated into orthogonal component beams, wherein the beams are counter-propagated through the equalizer in opposite directions through the same spatial path so as to minimize or eliminate the effects spatially dependent imperfections in the equalizer.