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:
Dec. 02, 2014
Filed:
Jul. 03, 2013
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Inventor:
Tomoko Miura, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); H01S 5/06 (2006.01); H01S 5/0625 (2006.01); H01S 5/024 (2006.01); H01S 5/026 (2006.01); H01S 5/0687 (2006.01); H01S 5/12 (2006.01);
U.S. Cl.
CPC ...
H01S 5/06 (2013.01); H01S 5/0612 (2013.01); H01S 5/06256 (2013.01); H01S 5/02415 (2013.01); H01S 5/0265 (2013.01); H01S 5/0617 (2013.01); H01L 5/06258 (2013.01); H01S 5/0687 (2013.01); H01S 5/1209 (2013.01); H01S 5/1212 (2013.01);
Abstract
A method to tune an emission wavelength of a wavelength tunable LD is disclosed. The wavelength tunable LD includes two regions each providing micro heaters to modify the refractive index of micro regions provided with power. The method periodically detects a difference between the emission wavelength and the target wavelength. This wavelength difference is converted into power next supplied to respective micro heaters independently.
Quick Actions:
Miura, Tomoko. (2014). Method to tune emission wavelength of wavelength tunable laser diode (U.S. Patent No. 8902938). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8902938
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile