COUPLING-COEFFICIENTS IN GAIN-COUPLED DFB LASERS - INHERENT COMPROMISE BETWEEN COUPLING STRENGTH AND LOSS

被引：28

作者：

DAVID, K ^{[1
]}

BUUS, J ^{[1
]}

MORTHIER, G ^{[1
]}

BAETS, R ^{[1
]}

机构：

[1] PLESSEY RES CASWELL LTD,TOWCESTER NN128 EQ,NORTHANTS,ENGLAND

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 05期

关键词：

D O I：

10.1109/68.93871

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A theoretical analysis of the gain-coupling coefficient kappa-(gain)L for DFB lasers with first-order, rectangular, gain, or loss gratings is presented. For the structure with gain grating, the dependence of kappa-(gain) on the modal gain g(mod) has been into account for the first time. In both structures, an inherent compromise between coupling strength and extra modal loss is found. The results show that significant kappa-(gain)L values are feasible, allowing to benefit from the unique features of gain-coupled DFB lasers.

引用

页码：439 / 441

页数：3

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