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:
Feb. 24, 1998
Filed:
Dec. 01, 1995
Applicant:
Inventors:
Assignee:
France Telecom, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
359344 ; 359336 ; 359341 ; 257 21 ;
Abstract
The invention relates to a wavelength conversion apparatus for transmitting data carried by an incident pump wave beam of wavelength .lambda. to a probe wave of wavelength .lambda..sub.s. The apparatus has two semiconductor optical amplifiers and means for splitting the incident pump wave beam so as to inject a respective secondary pump wave beam into each of said optical amplifiers, said optical amplifiers are connected in series on the path of the probe wave so that each of them modulates said wave in intensity with the corresponding secondary pump wave beam by means of a crossover gain-saturation phenomenon.