Narrow linewidth fiber laser for 100-km optical frequency domain reflectometry

被引：148
作者：
Geng, JH [1 ]
Spiegelberg, C [1 ]
Jiang, SB [1 ]
机构：
[1] NP Photon Inc, Tucson, AZ 85747 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 09期
关键词：
distance measurement; frequency modulation; laser radar; Rayleigh scattering;
D O I：
10.1109/LPT.2005.853258
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 diode-pumped single-frequency piezoelectrically tuned fiber laser with narrow spectral linewidth has been used as a light source in applications for long-range coherent frequency-domain reflectometry. Frequency-modulated continuous-wave (FMCW) measurements of Rayleigh back-scattering and. Fresnel reflection from a 95-km-long fiber have been demonstrated without the use of an optical amplifier. This is, to our knowledge, the longest distance measurement with FMCW. The high sensitivity and dynamic range of the long-range backscattering measurements benefit from the extremely long coherence length of the narrow linewidth fiber laser, which has been estimated to be 210 km in air.
引用
收藏
页码：1827 / 1829
页数：3
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