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:
Apr. 22, 2003
Filed:
Jul. 25, 2001
Andrew Shuh-Huei Liao, San Jose, CA (US);
Ghulam Hasnain, Palo Alto, CA (US);
Chihping Kuo, Milpitas, CA (US);
Hao-Chung Kuo, San Jose, CA (US);
Zhiqing Shi, San Jose, CA (US);
Minh Ngoc Trieu, San Jose, CA (US);
LuxNet Corporation, Fremont, CA (US);
Abstract
A laser diode that includes a light guiding structure that improves the light-output-versus-current curve by altering the multiple spatial modes of the laser diode. A laser diode according to the present invention includes a bottom mirror constructed on an electrically conducting material, an active region constructed from a first conductive spacer situated above the bottom mirror, a light emitting layer, and a second conductive spacer situated above the light emitting layer. The laser diode also includes a top mirror constructed from a plurality of mirror layers of a semiconducting material of a first conductivity type that are located above the second conductive spacer. The adjacent mirror layers have different indexes of refraction. One or more of the top mirror layers is altered to provide an aperture defining layer that includes an aperture region that alters the spatial modes of the device.