HIGH-RESOLUTION OFDR WITH INCORPORATED FIBEROPTIC FREQUENCY ENCODER

被引:35
作者
TAKADA, K
机构
[1] NTT Opto-electronic Laboratories, NTT Corp., Ibaraki-Ken
关键词
D O I
10.1109/68.157152
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
This letter reports a high-resolution OFDR which employs the frequency sampling method. The auxiliary interferometer for generating the clock pulses at equally spaced light frequencies is incorporated into the main interferometer to simplify the system configuration and to reduce the effect of different environmental perturbations occurring at the two interferometers. 180-MHz frequency sampling is shown to give an 850-mu-m spatial resolution and -80 dB minimum detectable reflectivity through the use of a DFB-LD with 180-GHz nonlinear chirp.
引用
收藏
页码:1069 / 1072
页数:4
相关论文
共 8 条
[1]  
Brigham E. O., 1974, FAST FOURIER TRANSFO
[2]  
BRINKMEYER E, 1991, P OPTICAL FIBER COMM, P129
[3]  
KAMATANI O, 1990, P OPT FIBER SENSORS, P361
[4]   OFDR DIAGNOSTICS FOR FIBER AND INTEGRATED-OPTIC SYSTEMS [J].
KINGSLEY, SA ;
DAVIES, DEN .
ELECTRONICS LETTERS, 1985, 21 (10) :434-435
[5]   OPTICAL-FREQUENCY ENCODER USING POLARIZATION-MAINTAINING FIBER [J].
KOBAYASHI, M ;
TAKADA, K ;
NODA, J .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1990, 8 (11) :1697-1702
[6]   COHERENT FMCW REFLECTOMETRY USING A TEMPERATURE TUNED ND-YAG RING LASER [J].
SORIN, WV ;
DONALD, DK ;
NEWTON, SA ;
NAZARATHY, M .
IEEE PHOTONICS TECHNOLOGY LETTERS, 1990, 2 (12) :902-904
[7]   FIBER OPTIC FOURIER-TRANSFORM SPECTROMETER WITH A COHERENT INTERFEROGRAM AVERAGING SCHEME [J].
TAKADA, K ;
KOBAYASHI, M ;
NODA, J .
APPLIED OPTICS, 1990, 29 (34) :5170-5176
[8]  
VENKATESH S, 1992, P OPT FIBER SENSORS, P61