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:
Feb. 24, 2015
Filed:
Feb. 19, 2013
Mark Heimbuch, Chatsworth, CA (US);
Near Margalit, Westlake Village, CA (US);
Mark Heimbuch, Chatsworth, CA (US);
Near Margalit, Westlake Village, CA (US);
Source Photonics (Chengdu) Co., Ltd., Chengdu, CN;
Abstract
A modulated laser system generally includes a light emission region, a modulation region having a plurality of semiconductive layers, at least one of which includes a quantum well layer having a variable energy bandgap, and an isolation region separating the light emission region and the modulation region. The laser may be an electro-absorption modulated laser, the light emission region may include a distributed feedback laser, and the modulation region may include an electro-absorption modulator. The laser may be manufactured by forming a lower semiconductive buffer layer on a substrate, an active layer including one or more quantum well layers having the variable energy bandgap on or above the lower semiconductive buffer layer, an upper semiconductive buffer layer on or above the active layer, a contact layer on or above the upper semiconductive buffer layer, and an isolation region separating the light emission region and the modulation region.