High-temperature operating 894.6nm-VCSELs with extremely low threshold for Cs-based chip scale atomic clocks

	High-temperature operating 894.6nm-VCSELs with extremely low threshold for Cs-based chip scale atomic clocks
	Zhang, J. W.; X. Zhang; H. B. Zhu; J. Zhang; Y. Q. Ning; L. Qin and L. J. Wang
	2015
发表期刊	Optics Express
卷号	23 期号:11 页码:14763-14773
摘要	We report on the design and fabrication of 894.6nm vertical-cavity surface-emitting lasers (VCSELs) with extremely low threshold at high temperatures, for use in chip-scale Cs atomic clocks. A new design method based on the analysis of the threshold gain and the desired carrier density for different active region structures was proposed to gain the low transparent current density. The increase of the threshold current at higher temperatures was successfully suppressed by introducing the large gain-cavity detuning of VCSEL. By detuning the gain-cavity mode to be -11 nm, the minimum threshold current of only 0.23mA at 70 degrees C was achieved. The operating temperature for emitting the wavelength of 894.6nm was 110 degrees C, with the single mode suppression ratio (SMSR) of more than 25dB and the threshold current of only 0.32mA. (C) 2015 Optical Society of America
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55275
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang, J. W.,X. Zhang,H. B. Zhu,et al. High-temperature operating 894.6nm-VCSELs with extremely low threshold for Cs-based chip scale atomic clocks[J]. Optics Express,2015,23(11):14763-14773.
APA	Zhang, J. W.,X. Zhang,H. B. Zhu,J. Zhang,Y. Q. Ning,&L. Qin and L. J. Wang.(2015).High-temperature operating 894.6nm-VCSELs with extremely low threshold for Cs-based chip scale atomic clocks.Optics Express,23(11),14763-14773.
MLA	Zhang, J. W.,et al."High-temperature operating 894.6nm-VCSELs with extremely low threshold for Cs-based chip scale atomic clocks".Optics Express 23.11(2015):14763-14773.

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