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:
Jul. 03, 2001
Filed:
Dec. 07, 1999
Christian Duchet, Marcoussis, FR;
Alcatel, Paris, FR;
Abstract
A semiconductor phase modulator comprises a lower cladding layer, an active waveguide and an upper cladding layer, deposited successively on a substrate made of III-V material. The active waveguide comprises at least one first active layer having a first photoluminescence wavelength and one second active layer of compensation having a second photoluminescence wavelength. The operating wavelength of the modulator is higher than the first photoluminescence wavelength by a value ranging from 80 to 200 nm, and it is greater than the second photoluminescence wavelength by a value of over 300 nm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile