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:
Aug. 29, 2006
Filed:
Jun. 14, 2004
Tirumala R. Ranganath, Palo Alto, CA (US);
Jintian Zhu, Palo Alto, CA (US);
Tirumala R. Ranganath, Palo Alto, CA (US);
Jintian Zhu, Palo Alto, CA (US);
Avago Technologies Fiber IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
Semiconductor quantum well devices and methods of making the same are described. In one aspect, a device includes a quantum well structure that includes semiconductor layers defining interleaved heavy-hole and light-hole valance band quantum wells. Each of the quantum wells includes a quantum well layer interposed between barrier layers. One of the semiconductor layers that functions as a barrier layer of one of the light-hole quantum wells also functions as the quantum well layer of one of the heavy-hole quantum wells. Another of the semiconductor layers that functions as a barrier layer of one of the heavy-hole quantum wells also functions as the quantum well layer of one of the light-hole quantum wells.