中国科学院机构知识库网格系统: Theoretical analysis of emission characteristics of second-order distributed feedback semiconductor lasers (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Theoretical analysis of emission characteristics of second-order distributed feedback semiconductor lasers (EI CONFERENCE)

文献类型：会议论文


作者	Liu Y.; Liu Y.; Qin L.; Liu Y.; Wang L.; Wang L.; Wang L.
出版日期	2010
会议名称	Semiconductor Lasers and Applications IV, October 18, 2010 - October 19, 2010
会议地点	Beijing, China
关键词	Based on the modified coupled-wave theory the emission characteristics including threshold gain photon density distribution in the cavity and external differential quantum efficiency for second-order DFB lasers are investigated. Numerical simulation results show that for given device structure with wavelength of 1.55 m the feedback coupling coefficient and the surface radiation coupling coefficient of the second-order grating have great influence on the emission characteristics of the device. By choosing different duty cycles of the grating we can change the two coupling coefficients which affect the emission characteristics. For an overall consideration an optimal duty cycle of 0.43 is chosen. The optimized results show that the device works without degeneracy modes and spatial burning hole. Besides the side-mode suppress ratio (SMSR) and external differential quantum efficiency reach as high as 42 dB and 47% respectively. 2010 SPIE.
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/33950]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Liu Y.,Liu Y.,Qin L.,et al. Theoretical analysis of emission characteristics of second-order distributed feedback semiconductor lasers (EI CONFERENCE)[C]. 见:Semiconductor Lasers and Applications IV, October 18, 2010 - October 19, 2010. Beijing, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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