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:
Jan. 06, 1998
Filed:
Aug. 16, 1995
Bo E Lagerstrom, Skarholmen, SE;
Telefonaktiebolaget L M Ericsson, Stockholm, SE;
Abstract
A laser wavelength control system (20) stabilizes laser output wavelength. The control system includes a reflector/filter device (40) upon which laser radiation is incident for yielding both a filtered-transmitted signal (FS) and a reflected signal (RS). A controller (45) uses both the filtered-transmitted signal (FS) and the reflected signal (RS) to generate a control signal (CS). The control signal is utilized by a temperature converter (100) to adjust laser output wavelength of the laser (22). In one embodiment, the reflector/filter device is an optical fiber grating. The wavelength control system facilitates construction of a modular optical multichannel transmission system (200).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile