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. 04, 2003
Filed:
Jul. 19, 2002
Applicant:
Inventor:
Simon Cao, Pleasanton, CA (US);
Assignee:
Avanex Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/00 ;
U.S. Cl.
CPC ...
H01S 3/00 ;
Abstract
A bi-directional polarization independent optical isolator and monitor/amplifier system simultaneously transmits two separate signal rays in opposite forward directions while simultaneously suppressing backward transmission of each signal ray in its respective reverse direction. Both of the counter-propagating signal rays are amplified within an optical gain element. The separate signal rays include either two wavelength bands completely separated in wavelength or two sets of wavelengths, each of a plurality of wavelengths, such that wavelengths of the two signal rays are interspersed in alternating fashion.