WAVELENGTH DEPENDENCES OF BRILLOUIN FREQUENCY-SHIFTS OF OPTICAL FIBERS IN 1.55 MU-M WAVELENGTH REGION

被引：3

作者：

TSUN, TO

WADA, A

YAMAUCHI, R

机构：

[1] Optoelectronics Laboratory Fujikura Ltd., Sakura, Chiba 285, 1440, Mutsuzaki

来源：

ELECTRONICS LETTERS | 1991年 / 27卷 / 19期

关键词：

SCATTERING; OPTICAL FIBERS;

D O I：

10.1049/el:19911097

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：

The Brillouin frequency shifts of three types of optical fibres are measured by the heterodyne method using an electrical spectrum analyser. Owing to its excellent resolution, a change of 10 MHz in the Brillouin frequency shift, which corresponds to a change of the order of 1 nm in pump wavelength, can be easily measured. The longitudinal acoustic velocities of different fibre types can be deduced. The results also confirm that the frequency shift (approximately 10 GHz) varies inversely to the wavelength and decreases with an increase of GeO2 doping concentration.

引用

页码：1764 / 1765

页数：2

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