Optical frequency domain reflectometry based on self-sweeping fiber laser

被引：0
|
作者：
Tkachenko, Alina Yu. [1 ]
Lobach, Ivan A. [1 ,2 ]
Kablukov, Sergey I. [1 ,2 ]
机构：
[1] RAS, Inst Automat & Electrometry, SB, Novosibirsk, Russia
[2] Novosibirsk State Univ, Novosibirsk, Russia
来源：
SEVENTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS (EWOFS 2019) | 2019年 / 11199卷
关键词：
optical frequency domain reflectometry; self-sweeping fiber laser; tunable laser; fiber sensor; CODES;
D O I：
10.1117/12.2541275
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The paper presents the first experimental results on operation of an optical frequency domain reflectometer (OFDR) based on a self-sweeping fiber laser. Frequency tuning in this laser is performed without actively tunable elements. Its intensity dynamics consists of regular microsecond pulses. The self-sweeping laser has high linearity of frequency tuning, which allows us to measure the reflectograms without additional spectral correction. The OFDR demonstrates capability of operation with spatial sampling of similar to 200 mu m and sensitivity down to similar to -80 dB with line length of up to 9 meters.
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页数：4
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