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:
Aug. 10, 2004
Filed:
Nov. 01, 2000
Zhimin Liu, San Jose, CA (US);
Oplink Communications, Inc., San Jose, CA (US);
Abstract
This invention discloses an optical interleaver that includes a first collimating lens for collimating an input optical signal into collimated beams and a second collimating lens for focusing the collimated parallel beams into an output optical fiber. The interleaver further includes a phase delay difference generating means for generating a phase-delay difference between portions of the collimated parallel beams for generating an interference in the second collimating lens for selectively enhance signal transmission of certain wavelengths. In a preferred embodiment, the phase delay difference generating means comprising a glass plate blocking a portion of the collimated parallel beams for generating a phase delay for a portion of the collimated parallel beams passing therethrough. In another preferred embodiment, the phase delay difference generating means comprising a glass plate having an upper portion covering an upper portion of the collimated parallel beams. The glass plate having a lower portion covering a lower portion of the collimated parallel beams for generating a phase delay difference between the upper portion and lower portion of the collimated parallel beams. In another preferred embodiment, the interleaver further includes a control means for controlling the phase delay difference generating means for selectively generating signal transmission at different wavelengths according to the interference generated in the second collimating lens.