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	Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers
	LEE, SAN-LIANG; JANG, ING-FA
	2005-02-10
著作权人	NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
专利号	US20050031009A1
国家	美国
文献子类	发明申请
其他题名	Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers
英文摘要	A single-wavelength distributed feedback (DFB) laser structure is provided. The laser structure having two sections includes an active-material layer for generating a laser having a wavelength in a specific range, two cladding layers respectively covering an upper and a bottom sides of the active-material layer for forming a waveguide structure, a phase shift layer having a specific thickness for controlling a difference between Bragg wavelengths of the two sections, a wet-etching stop layer positioned between the active-material layer and the phase shift layer, and a grating layer having a specific period for determining an illuminating wavelength, wherein a difference between the two sections is an existence of the phase shift layer thereon, and the existence of the phase shift layer causes a difference of the effective refractive indices between the two sections so as to generate a fixed difference between Bragg wavelengths of the two sections.
公开日期	2005-02-10
申请日期	2003-08-07
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/64267]
专题	半导体激光器专利数据库
作者单位	NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
推荐引用方式 GB/T 7714	LEE, SAN-LIANG,JANG, ING-FA. Structure and manufacturing method for single-wavelength and multi-wavelength distributed feedback lasers. US20050031009A1. 2005-02-10.

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