Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography

doi:10.1109/jphot.2018.2818170

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	Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography
	Gao, F.; Qin, L.; Chen, Y. Y.; Jia, P.; Chen, C.; Cheng, L. W.; Chen, H.; Liang, L.; Zeng, Y. G.; Zhang, X.; Ning, Y. Q.; Wang, L. J.
	2018
发表期刊	Ieee Photonics Journal
ISSN	1943-0655
卷号	10 期号:2 页码:10
摘要	A low-cost regrowth-free narrow-strip single-longitudinal-mode diode laser, based on periodic anodes defined only by i-line lithography is proposed. With the periodic anodes separated by surface insulated grooves acting as a 44th-order gain grating, a high gain contrast is achieved without introducing effective index coupling. The CW output power of the device without facet coatings is up to 100.9 mW/facet at 980.63 nm in single-longitudinal mode operation with a single facet having a power conversion efficiency of up to 18.6% and a slope efficiency of 0.53 W/A. The highest side-mode suppression ratio is 45 dB with a linewidth below 889 MHz, at 350 mA. The beam parameter product, M-2, in the slow axis is 1.85, achieving a near diffraction-limited beam quality. A novel method for easy surface gratings fabrication is first presented, wherein, 4-mu m-width periodic surface grooves, acting as waveguide ridges, are defined once by i-line lithography only without regrowth, nanoscale gratings fabrication, or facet coating. Owing to the low-cost fabrication methods and good performances, our single-longitudinal-mode devices can be used for widespread practical applications.
关键词	Semiconductor lasers single longitudinal mode narrow linewidth feedback semiconductor-lasers coupled dfb lasers surface gratings gain nm power linewidth Engineering Optics Physics
DOI	10.1109/jphot.2018.2818170
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61074
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Gao, F.,Qin, L.,Chen, Y. Y.,et al. Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography[J]. Ieee Photonics Journal,2018,10(2):10.
APA	Gao, F..,Qin, L..,Chen, Y. Y..,Jia, P..,Chen, C..,...&Wang, L. J..(2018).Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography.Ieee Photonics Journal,10(2),10.
MLA	Gao, F.,et al."Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography".Ieee Photonics Journal 10.2(2018):10.

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