A theoretical evaluation of the absorption coefficient of the optical waveguide chemical or biological sensors by group index method

被引：22

作者：

Qing, DK

Chen, XM

Itoh, K

Murabayashi, M

机构：

[1] Inst. of Environ. Sci. and Technol., Yokohama National University

[2] State Key Lab. Transducer Technol., Institute of Electronics, Chinese Academy of Sciences

[3] Yokohama National University, Yokohama

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1996年 / 14卷 / 08期

关键词：

D O I：

10.1109/50.532028

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：

In this paper, an approach which we refer to as group index method was proposed to evaluate the absorption coefficient of the optical waveguide chemical or biological sensors. In this method, the absorption coefficient is regarded as mainly determined by the group index and the power fraction in the region of an absorptive medium. The absorption coefficient of the normal plane wave absorption; of the evanescent wave absorption which includes the type of open clad, buffered clad and sensing layer; and of the guided wave absorption for TE modes were investigated by this method. Some suggestions for optimizing the structure of the optical waveguide sensors were given.

引用

页码：1907 / 1917

页数：11

共 17 条

[1] HIGHLY SENSITIVE AND LOW-LOSS ION-EXCHANGED GLASS OPTICAL WAVE-GUIDES CONSTRUCTED BY THE SUCCESSIVE DOPING OF K+ AND AG+ IONS [J].