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:
Jun. 30, 2009
Filed:
Oct. 22, 2004
Stephen G. Grubb, Ellicott City, MD (US);
Charles H. Joyner, Sunnyvale, CA (US);
Frank H. Peters, San Jose, CA (US);
Fred A. Kish, Jr., Palo Alto, CA (US);
Drew D. Perkins, Saratoga, CA (US);
Stephen G. Grubb, Ellicott City, MD (US);
Charles H. Joyner, Sunnyvale, CA (US);
Frank H. Peters, San Jose, CA (US);
Fred A. Kish, Jr., Palo Alto, CA (US);
Drew D. Perkins, Saratoga, CA (US);
Infinera Corporation, Sunnyvale, CA (US);
Abstract
An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An optical amplifier may be coupled to receive, as an input/output, the multiplexed channel signals which amplifier may be a semiconductor optical amplifier (SOA) or a gain clamped-semiconductor optical amplifier (GC-SOA). A variable optical attenuator (VOA) is coupled to the optical amplifier and a chromatic dispersion compensator (CDC) is coupled to the variable optical attenuator. A mirror or Faraday rotator mirror (FRM) is coupled to the chromatic dispersion compensator to reflect the multiplexed channel signal back through these optical components The E/CDC components may be integrated in a photonic integrated circuit (PIC) chip.