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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.:

US 6831774 B1

PDFFull Text
Date of Patent:
Dec. 14, 2004

Filed:

Jul. 06, 2001

Multi-wavelength generating method and apparatus based on flattening of optical spectrum

Applicant:
Inventors:

Masamichi Fujiwara, Yokosuka, JP;

Katsuhiro Araya, Yokohama, JP;

Mitsuhiro Teshima, Yokosuka, JP;

Junichi Kani, Yokohama, JP;

Kenichi Suzuki, Narashino, JP;

Assignee:

Nippon Telegraph and Telephone Corporation, , JP;

Attorney:

Ostrolenk, Faber, Gerb & Soffen, LLP

Primary Examiner:

John D Lee

Int. Cl.
CPC ...
G02F 1/35 ; G02F 2/02 ; G02F 1/01 ;
U.S. Cl.
CPC ...
G02F 1/35 ; G02F 2/02 ; G02F 1/01 ;
Abstract

Amulti-wavelength generating apparatus generates a wavelength division multiplexing (WDM) signal by modulating light with a single central frequency and an electric signal having a particular pulse repetition frequency. The resulting optical spectrum configuration is conntrollable so that a Relative Intensity Noise (RIN) or Signal to Noise Ratio (SNR) requirement may be achieved. A modulated or pulsed light source in used to obtain a descrete spectrum with particular mode spacing, which is then modulated to permit dynamic power control for specific modes of the discrete spectrum.

Find Patent Forward Citations

Fujiwara, Masamichi. (2004). Multi-wavelength generating method and apparatus based on flattening of optical spectrum (U.S. Patent No. 6831774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6831774

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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