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.

Date of Patent:
Jul. 08, 2003

Filed:

May. 16, 2001
Applicant:
Inventors:

Richard Mark Ash, Bury St Edmunds, GB;

Christopher Anthony Park, Bacton, GB;

Andrew Thomas Harker, Ipswich, GB;

Assignee:

Agilent Technologies, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/03 ; G02F 1/01 ; H01S 3/04 ;
U.S. Cl.
CPC ...
G02F 1/03 ; G02F 1/01 ; H01S 3/04 ;
Abstract

The present invention relates to a modulated light source, in particular for use as part of an opto-electronic communication network. The modulated light source has a laser and an external electro-optic modulator for modulating the intensity of light produced by the laser. A temperature sensor senses the temperature of the laser and the modulator. A control circuit connected to the temperature sensor adjusts the bias on the modulator so that the band edge of the modulator follows the changes in wavelength of the laser as the laser warms up during operation. This avoids the need for a cooling element to keep the temperature of the laser constant.


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Ash, Richard. (2003). Light modulation (U.S. Patent No. 6590693). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6590693

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