NO DEAD-SPACE OPTICAL TIME-DOMAIN REFLECTOMETER

被引:22
|
作者
RIPAMONTI, G [1 ]
GHIONI, M [1 ]
LACAITA, A [1 ]
机构
[1] POLITECN MILAN,CNR,CTR ELETTRON QUANTIST & STRUMENTAZ ELECTRON,I-20133 MILAN,ITALY
关键词
D O I
10.1109/50.59152
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
An optical time-domain reflectometer operating at room temperature with the single-photon counting technique is described. It features subcentimeter resolution without data deconvolution, and the capability of observing Rayleigh scattering a few centimeters after a reflecting (Fresnel) discontinuity. The key component for the instrument is a silicon single-photon detector of a new design. It is shown that the instrument limitations in the measurements depend mainly on the gain-switched laser diode, which is the laser of choice in portable instruments suitable for field measurements. © 1990 IEEE
引用
收藏
页码:1278 / 1283
页数:6
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