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:
Oct. 27, 2015
Filed:
Nov. 09, 2011
Dmitri Vladislavovich Kuksenkov, Big Flats, NY (US);
Shenping LI, Painted Post, NY (US);
Hong KY Nguyen, Painted Post, NY (US);
Chung-en Zah, Holmdel, NJ (US);
Dmitri Vladislavovich Kuksenkov, Big Flats, NY (US);
Shenping Li, Painted Post, NY (US);
Hong Ky Nguyen, Painted Post, NY (US);
Chung-En Zah, Holmdel, NJ (US);
Thorlabs Quantum Electronics, Inc., Jessup, MD (US);
Abstract
A multi-wavelength distributed Bragg reflector (DBR) semiconductor laser is provided where DBR heating elements are positioned over the waveguide in the DBR section and define an interleaved temperature profile that generates multiple distinct reflection peaks corresponding to distinct temperature dependent Bragg wavelengths associated with the temperature profile. Neighboring pairs of heating elements of the DBR heating elements positioned over the waveguide in the DBR section are spaced along the direction of the axis of optical propagation by a distance that is equal to or greater than the laser chip thickness b to minimize the impact of thermal crosstalk between distinct temperature regions of the interleaved temperature profile.