Emission characteristics of surface second-order metal grating distributed feedback semiconductor lasers

	Emission characteristics of surface second-order metal grating distributed feedback semiconductor lasers
其他题名	论文其他题名
	Shi J. X.; Qin L.; Liu Y.; Zhang N.; Zhang J.; Zhang L. S.; Jia P.; Ning Y. Q.; Zeng Y. G.; Zhang J. L.; Wang L. J.
	2012
发表期刊	Chinese Science Bulletin
ISSN	1001-6538
卷号	57 期号:17 页码:2083-2086
摘要	To obtain high-power semiconductor lasers with stable operation in a single longitudinal mode and improve the characteristics of the output beam, an end-emitting surface second-order metal grating distributed feedback (DFB) laser emitting at around 940 nm is fabricated. The characteristics of the uncoated devices with and without gratings are tested under room temperature continuous-wave conditions without any temperature-control device and compared. The devices with gratings achieve high powers of up to 385 mW/facet and a small lateral far-field angle of 2.7A degrees at 1.5 A, have only 4.13 nm/A wavelength-shift, and 0.09 nm spectral linewidth at 600 mA, and operate in a stable longitudinal mode. Devices without gratings operate in multimode, with a larger lateral far-field angle (7.3A degrees) and spectral linewidth (1.3 nm), although with higher output powers. Because of the integration of second-order metal gratings and their very high coupling capability, the output beam quality is improved greatly, the lasing wavelength is stable and varies slowly with changes in injection current, while the spectrum is narrowed dramatically, and the far-field angles are greatly reduced. This opens the way for the realization of watt-scale power broad-stripe (> 100 mu m) surface second-order metal grating end and surface-emitting DFB lasers and arrays with single frequency, single mode operation and high output beam quality.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24608
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Shi J. X.,Qin L.,Liu Y.,et al. Emission characteristics of surface second-order metal grating distributed feedback semiconductor lasers[J]. Chinese Science Bulletin,2012,57(17):2083-2086.
APA	Shi J. X..,Qin L..,Liu Y..,Zhang N..,Zhang J..,...&Wang L. J..(2012).Emission characteristics of surface second-order metal grating distributed feedback semiconductor lasers.Chinese Science Bulletin,57(17),2083-2086.
MLA	Shi J. X.,et al."Emission characteristics of surface second-order metal grating distributed feedback semiconductor lasers".Chinese Science Bulletin 57.17(2012):2083-2086.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Shi-2012-Emission ch（695KB）			开放获取	--	浏览下载