Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure

	Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure
	Jiang B
刊名	chinese physics b
	2011
卷号	20 期号:2 页码:article no.24204
关键词	vertical-cavity surface-emitting lasers single mode low divergence angle graded index profile OPTICAL INTERCONNECTS QUANTUM-DOT WAVE-GUIDE VCSELS POWER FIELD OPERATION OXIDATION DESIGN FIBERS
ISSN号	1674-1056
通讯作者	zheng, wh, chinese acad sci, inst semicond, nanooptoelect lab, beijing 100083, peoples r china. whzheng@semi.ac.cn
学科主题	光电子学
收录类别	SCI
资助信息	national key basic research special foundation of china [2011cb922000]; national natural science foundation of china [61025025, 60838003]; national high technology research and development program of china [2007aa03z410, 2007aa03z408]
语种	英语
公开日期	2011-07-06 ; 2011-07-15
附注	the 850-nm oxide-confined vertical-cavity surface-emitting lasers with petal-shape holey structures are presented. an area-weighted average refractive index model is given to analyse their effective index profiles, and the graded index distribution in the holey region is demonstrated. the index step between the optical aperture and the holey region is obtained which is related merely to the etching depth. four types of holey vertical-cavity surface-emitting lasers with different parameters are fabricated as well as the conventional oxide-confined vertical-cavity surface-emitting laser. compared with the conventional oxide-confined vertical-cavity surface-emitting laser without etched holes, the holey vertical-cavity surface-emitting laser possesses an improved beam quality due to its graded index distribution, but has a lower output power, higher threshold current and lower slope efficiency. with the hole number increased, the holey vertical-cavity surface-emitting laser can realize the single-mode operation throughout the entire current range, and reduces the beam divergence further. the loss mechanism is used to explain the single-mode characteristic, and the reduced beam divergence is attributed to the shallow etching. high coupling efficiency of 86% to a multi-mode fibre is achieved for the single-mode device in the experiment.
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/21343]
专题	半导体研究所_纳米光电子实验室
推荐引用方式 GB/T 7714	Jiang B. Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure[J]. chinese physics b,2011,20(2):article no.24204.
APA	Jiang B.(2011).Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure.chinese physics b,20(2),article no.24204.
MLA	Jiang B."Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure".chinese physics b 20.2(2011):article no.24204.