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	Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure
	Guo, Wanhong; Liu, Junqi; Chen, Jianyan; Li, Lu; Wang, Lijun; Liu, Fengqi; Wang, Zhanguo
刊名	Chinese optics letters
	2011-06-10
卷号	9期号:6页码:3
ISSN号	1671-7694
DOI	10.3788/col201109.061404
通讯作者	Liu, junqi(jqliu@semi.ac.cn)
英文摘要	Surface-emitting distributed feedback quantum-cascade lasers operating at lambda approximate to 7.8 mu m are demonstrated. the metal-covered second-order grating is shallow-etched into the surface of a thin ingaas contact and cladding layer. this forms a hybrid waveguide and used to achieve relatively low waveguide losses and high coupling strengths. the devices exhibit stable single-mode operation from 90 to 130 k with a side mode suppression ratio above 20 db. a slope efficiency of 194 mw/a is obtained at 90 k, which is twice higher than that of the fabry-perot counterpart.
WOS研究方向	Optics
WOS类目	Optics
语种	英语
出版者	CHINESE OPTICS LETTERS MANUSCRIPT OFFICE
WOS记录号	WOS:000291671700019
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428351
专题	半导体研究所
通讯作者	Liu, Junqi
作者单位	Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Guo, Wanhong,Liu, Junqi,Chen, Jianyan,et al. Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure[J]. Chinese optics letters,2011,9(6):3.
APA	Guo, Wanhong.,Liu, Junqi.,Chen, Jianyan.,Li, Lu.,Wang, Lijun.,...&Wang, Zhanguo.(2011).Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure.Chinese optics letters,9(6),3.
MLA	Guo, Wanhong,et al."Single-mode surface-emitting distributed feedback quantum-cascade lasers based on hybrid waveguide structure".Chinese optics letters 9.6(2011):3.

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