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. 02, 2002
Filed:
Dec. 13, 1999
Jonathan King, Epping, GB;
Joanne Wakefield, Ware, GB;
Nortel Networks Corporation, St. Laurent, CA;
Abstract
A pulse interleaver splits an input pulse train into at least two optical branches ( ). A first one of the branches ( ) carries a first signal, and is terminated with a mirror ( ) and a device ( ) for manipulating the state of polarization. The reflected signal is re-combined at a combiner ( ) with a second signal on a second one of the branches ( ). The effective path lengths for the first and second signals between the input and the combiner are selected such that the input pulse train is interleaved with itself thereby providing an output with increased frequency. The mirror ( ) and the device for manipulating the state of polarization ( ) provide a predetermined relationship between the polarization of pulses in the output pulse train derived from an individual pulse of the input pulse train.