INTERFEROMETRIC FIBER DISPLACEMENT STRAIN SENSOR BASED ON SOURCE COHERENCE SYNTHESIS

被引：10

作者：

BERKOFF, TA ^{[1
]}

KERSEY, AD ^{[1
]}

机构：

[1] USN,RES LAB,OPT TECH BRANCH,WASHINGTON,DC 20375

来源：

ELECTRONICS LETTERS | 1990年 / 26卷 / 07期

关键词：

Frequency modulation; Interferometers; Laser-beam interactions; Measurement;

D O I：

10.1049/el:19900293

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 displacement sensing technique is described, based on the use of a laser source frequency modulated at a relatively high rate to induce visibility modulation in the‘baseband’interference signal derived from a two-beam interferometer. Feedback control of the laser modulation, to lock the visibility to a minimum, is demonstrated. © 1990, The Institution of Electrical Engineers. All rights reserved.

引用

页码：452 / 453

页数：2

共 9 条

[1]

BERKOFF TA, 1989, SEP P OFS 89 BERL, P78

[2]

BUTLER CD, 1978, APPL OPTICS, V17, P2867

[3]

DANDRIDGE A, 1988, 6 P FIB OPT LAS SENS, V985

[4] PHASE-NOISE REDUCTION IN COHERENCE-MULTIPLEXED INTERFEROMETRIC FIBER SENSORS [J].

KERSEY, AD ;

DANDRIDGE, A .

ELECTRONICS LETTERS, 1986, 22 (11) :616-618

[5] MONOMODE FIBER POLARIZATION SCRAMBLER [J].

KERSEY, AD ;

DANDRIDGE, A .

ELECTRONICS LETTERS, 1987, 23 (12) :634-636

[6]

KERSEY AD, 1987, 2 P FIBER OPT SENS H, V798, P176

[7]

LEILABADY PA, 1985, P FIBER OPTIC SENSOR, V586, P230

[8]

Uttam D., 1983, First International Conference on Optical Fibre Sensors, P182

[9]

WADE CA, 1985, P SPIE, V586, P223

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