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:
Nov. 30, 2010
Filed:
Mar. 31, 2004
Christophe J. Dorrer, Matawan, NJ (US);
Alan H. Gnauck, Middletown, NJ (US);
Inuk Kang, Matawan, NJ (US);
Chongjin Xie, Marlboro, NJ (US);
Christophe J. Dorrer, Matawan, NJ (US);
Alan H. Gnauck, Middletown, NJ (US);
Inuk Kang, Matawan, NJ (US);
Chongjin Xie, Marlboro, NJ (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
Methods and apparatus are provided for transmitting alternate-polarization phase-shift-keyed data. The output of a laser is modulated to optically encode electronic data using phase shift keying (PSK) to generate an optical signal. An alternate polarization PSK (APol-PSK) signal is generated by alternating the polarization of the optical signal using a modulator such that successive optical bits have substantially orthogonal polarizations.