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:
Sep. 07, 1993
Filed:
Feb. 18, 1992
Shigeru Murata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A stable optical fiber dispersion-compensating device reduces electrical power consumption and compensates for wave deterioration due to dispersion of high speed signals having a frequency of several Gb/s or above. The devices includes a non-linear optical medium, a pump laser for generating pump light, means for injecting input signal light and the pump light into the non-linear optical medium, means for taking out output signal light which is frequency converted and is generated from the non-linear optical medium by non-degenerate four-wave mixing. The non-linear optical medium is a Fabry-Perot semiconductor laser, and the frequencies of the pump light and input signal light respectively substantially coincide with one of different resonant modes of the Fabry-Perot semiconductor laser.