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. 20, 2005
Filed:
Jul. 18, 2003
Sagie Tsadka, Emek Soreq, IL;
Shalva Ben-ezra, Rehovot, IL;
Haim Chayet, Nes-Ziona, IL;
Nir Shachar, Ramat-Gan, IL;
Sagie Tsadka, Emek Soreq, IL;
Shalva Ben-Ezra, Rehovot, IL;
Haim Chayet, Nes-Ziona, IL;
Nir Shachar, Ramat-Gan, IL;
Kailight Photonics, Inc., Dallas, TX (US);
Abstract
The invention consists of a system and method for regenerating and converting optical signals. The invention provides both '2R (i.e. reamplification and reshaping) and '3R' (i.e. reamplification, reshaping, and resynchronization (or retiming)) regeneration. The components of the inventive system include a tunable continuous wave (CW) laser source, an optical circulator, an semiconductor optical amplifier (SOA), and a spectral filter that has a very sharp cutoff frequency. In alternative embodiments, the filter may be replaced with an interleaver that passes several wavelengths. A single interleaver may be used by several of the optical regenerators/converters described herein. Each regenerator uses a separate wavelength that is associated with a passband frequency of the single interleaver. During counter-propagation in the SOA, a CW signal from the CW laser is chirped by bits in an input signal. The chirped signal is then output to the filter, which blocks the original CW signal.