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:
Apr. 29, 2003
Filed:
Feb. 16, 2000
Benny Peter Mikkelsen, Atlantic Highlands, NJ (US);
Gregory Raybon, Shrewsbury, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
An optical element for simultaneously retrieving the tributary data rate and the clock frequency from the line rate of an OTDM signal. The demultiplexing and clock recovery principle is based on injection locking of a high-Q-filtered and high gain loop with a variable phase delay and an EA-modulator with high non-linear response, i.e., absorption verses applied voltage. A modulator that is preferably an EA-modulator, an amplifier preferably an erbium doped fiber amplifier (“EDFA”), a base band receiver, an electronic amplifier, a high-Q filter, and a variable phase delay are arranged in a loop to provide an oscillator for simultaneously retrieving tributary data rate and clock frequency.