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:
Jun. 12, 2012
Filed:
Apr. 14, 2010
Chwan-yang Chang, Hsinchu, TW;
Chien-chih Chen, Ciaotou Township, Kaohsiung County, TW;
Martin Hai HU, Painted Post, NY (US);
Hong KY Nguyen, Painted Post, NY (US);
Chung-en Zah, Holmdel, NJ (US);
Chwan-Yang Chang, Hsinchu, TW;
Chien-Chih Chen, Ciaotou Township, Kaohsiung County, TW;
Martin Hai Hu, Painted Post, NY (US);
Hong Ky Nguyen, Painted Post, NY (US);
Chung-En Zah, Holmdel, NJ (US);
Corning Incorporated, Corning, NY (US);
Abstract
In accordance with one embodiment of the present disclosure, a process of manufacturing a semiconductor laser diode comprising a gain section, a QWI output window, and QWI waveguide areas is provided. The QWI waveguide areas are fabricated using quantum well intermixing and define a QWI waveguide portion in the QWI output window of the laser diode. The QWI output window is transparent to the lasing wavelength λ. The QWI waveguide portion in the QWI output window is characterized by an energy bandgap that is larger than an energy bandgap of the gain section such that the band gap wavelength λin the QWI waveguide portion and the QWI output window is shorter than the lasing wavelength λ. The QWI output window is characterized by a photoluminescent wavelength λ. The manufacturing process comprises a λscreening protocol that determines laser diode reliability based on a comparison of the lasing wavelength λand the photoluminescent wavelength λof the QWI output window. Additional embodiments are disclosed and claimed.