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:
May. 20, 2003
Filed:
Oct. 22, 1999
Yong-Hoon Kang, Kyonddi-do, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
There is provided a wavelength stabilizer for stabilizing the wavelength of an optical signal oscillated from a laser diode (LD) in each of a plurality of channel transmitters in a WDM (Wavelength Division Multiplex) optical transmission system. In the wavelength stabilizer, a temperature controlling circuit in each channel transmitter senses an LD operating temperature and maintains the LD at a reference temperature, a wavelength division multiplexer multiplexes the optical signals generated from the plurality of channel transmitters, a wavelength monitor is connected to the wavelength division multiplexer by an optical transmission line, monitors the wavelength deviation of an optical signal for each channel in the multiplexed signal, and outputs the wavelength deviation information, and a controller determines the wavelength deviation of each channel from the wavelength deviation information and updates the reference temperature of the temperature controlling circuit of each channel transmitter based on the deviation information.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile