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. 02, 2005
Filed:
Sep. 04, 2003
Masamichi Fujiwara, Tokyo, JP;
Katsuhiro Araya, Tokyo, JP;
Mitsuhiro Teshima, Tokyo, JP;
Junichi Kani, Tokyo, JP;
Kenichi Suzuki, Tokyo, JP;
Masamichi Fujiwara, Tokyo, JP;
Katsuhiro Araya, Tokyo, JP;
Mitsuhiro Teshima, Tokyo, JP;
Junichi Kani, Tokyo, JP;
Kenichi Suzuki, Tokyo, JP;
Abstract
A multi-wavelength generating apparatus generates a wavelength division multiplexing (WDM) signal by modulating light with a single central frequency and with an electric signal having a particular pulse repetition frequency. The resulting optical spectrum configuration is controllable so that a Relative Intensity Noise (RIN) or Signal to Noise Ratio (SNR) requirement may be achieved. A modulated or pulsed light source is used to obtain a discrete spectrum with particular mode spacing, which is then modulated to permit dynamic power control for specific modes of the discrete spectrum.