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:
Jul. 02, 1996
Filed:
Mar. 20, 1995
Coen T Liedenbaum, Eindhoven, NL;
John J Reid, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
An optical signal-regenerating unit for a received optical signal pulse series (S.sub.1) having a modulation period T and a wavelength .lambda..sub.d. The optical unit includes a pulsed laser for producing a regenerated pulse series S.sub.2 having a pulse period equal to the modulation period T. Pulses of the received pulse series S.sub.1 are injected into the pulsed laser at instants at which the energy of the injected pulse exceeds the energy of a pulse then being built up in the laser. By maintaining that relationship, the multimode spectrum of the pulse laser is converted into a single mode spectrum having a wavelength equal to the wavelength .lambda..sub.d of the received radiation.