ETRI-Knowledge Sharing Plaform

KOREAN
특허 검색
Status Country
Year ~ Keyword

Detail

Registered SEMICONDUCTOR LASER STRUCTURE INCLUDING QUANTUM DOT

단일파장 분포귀환형 양자점 반도체 레이저 구조
이미지 확대
Inventors
이진홍, Hong Sung Ui, Jin Soo Kim, Dae Kon Oh, 곽호상
Application No.
11595470 (2006.11.09)
Publication No.
20070133639 (2007.06.14)
Registration No.
7606284 (2009.10.20)
Country
UNITED STATES
Project Code
05MB3800, Semiconductor Quantum Dot Laser Diode for Fibre Communication, Dae Kon Oh
Abstract
Provided is a distributed feedback semiconductor laser structure including: a first clad layer; a first ridge waveguide formed on the first clad layer; an active layer formed on the first ridge waveguide; a second ridge waveguide formed on the active layer; a second clad layer formed on the second ridge waveguide; an ohmic contact layer formed on the second clad layer; and a plurality of gratings formed in at least one of the first and second clad layers, making a predetermined angle with the first ridge waveguide or the second ridge waveguide, and periodically arranged in a longitudinal direction of the first or second ridge waveguide. As a result, a general hologram lithography process capable of mass production is applied to the present invention so that process time can be reduced. Also, a distributed feedback semiconductor laser structure using a quantum-dot active layer that does not require an additional process for obtaining a pure single-wavelength is provided.
KSP Keywords
Active Layer, Clad layer, Contact layer, Distributed feedback, Longitudinal direction, Ohmic contact, Quantum Dot(QD), Ridge waveguides(RWs), Semiconductor lasers, Single wavelength, lithography process, mass production, process time
Family
 
패밀리 특허 목록
Status Patent Country KIPRIS
Registered 양자점을 포함하는 반도체 레이저 구조물 KOREA KIPRIS