Distributed feedback fiber laser strain sensors

被引:164
作者
Cranch, Geoffrey A. [1 ]
Flockhart, Gordon M. H. [1 ]
Kirkendall, Clay K. [1 ]
机构
[1] USN, Res Lab, Washington, DC 20375 USA
关键词
array; Bragg grating; DFB fiber laser; erbium doped fiber (EDF); hydrophone; multiplexing; strain sensor;
D O I
10.1109/JSEN.2008.926876
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
The distributed feedback (DFB) fiber laser strain sensor has demonstrated strain resolution comparable to that obtained from high-performance fiber-optic interferometry. This manuscript describes the characteristics and performance of this fiber laser strain sensor and discusses the technological developments necessary to obtain comparable performance from a multiplexed array of laser sensors. The design of the Bragg grating and doped fiber are discussed, where possible providing simplified equations to quantify the relevant design parameters. Techniques based on fiber-optic interferometry to decode the wavelength shifts of the laser are presented and potential noise sources are described. Measurements conducted on a test laser demonstrate the capability of the DFB fiber laser to resolve effective length changes to less than 0.76 fm/Hz(1/2) at 2 kHz. The accuracy of the strain measurement, calculated by subtracting the output of two lasers subjected to the same strain, is found to be less than 1%. Issues relating to multiplexing lasers, such as pump power depletion and optical feedback, are described along with methods to maximize the number of lasers serially multiplexed on a single fiber. Finally, the strain transduction mechanism and methods to mount the laser sensor are described. It is shown that for certain applications, the DFB fiber laser sensor provides significant performance benefits when compared with remotely interrogated fiber-optic interferometric sensing techniques.
引用
收藏
页码:1161 / 1172
页数:12
相关论文
共 50 条
[1]   THE INFLUENCE OF FEEDBACK INTENSITY ON LONGITUDINAL MODE PROPERTIES AND OPTICAL NOISE IN INDEX-GUIDED SEMICONDUCTOR-LASERS [J].
ACKET, GA ;
LENSTRA, D ;
DENBOEF, AJ ;
VERBEEK, BH .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1984, 20 (10) :1163-1169
[2]   A MULTIPLEXED BRAGG GRATING FIBER LASER SENSOR SYSTEM [J].
ALAVIE, AT ;
KARR, SE ;
OTHONOS, A ;
MEASURES, RM .
IEEE PHOTONICS TECHNOLOGY LETTERS, 1993, 5 (09) :1112-1114
[3]   Erbium fiber laser accelerometer [J].
Ames, Gregory H. ;
Maguire, Jason M. .
IEEE SENSORS JOURNAL, 2007, 7 (3-4) :557-561
[4]   FIBER OPTICS STRAIN-GAUGE [J].
BUTTER, CD ;
HOCKER, GB .
APPLIED OPTICS, 1978, 17 (18) :2867-2869
[5]   STABLE SINGLE-FREQUENCY TRAVELING-WAVE FIBER LOOP LASER WITH INTEGRAL SATURABLE-ABSORBER-BASED TRACKING NARROW-BAND-FILTER [J].
CHENG, Y ;
KRINGLEBOTN, JT ;
LOH, WH ;
LAMING, RI ;
PAYNE, DN .
OPTICS LETTERS, 1995, 20 (08) :875-877
[6]   Demonstration of a passive subpicostrain fiber strain sensor [J].
Chow, JH ;
McClelland, DE ;
Gray, MB ;
Littler, ICM .
OPTICS LETTERS, 2005, 30 (15) :1923-1925
[7]   Intensity noise characteristics of erbium-doped distributed-feedback fiber lasers [J].
Cranch, GA ;
Englund, MA ;
Kirkendall, CK .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 2003, 39 (12) :1579-1587
[8]   Large-scale remotely pumped and interrogated fiber-optic interferometric sensor array [J].
Cranch, GA ;
Kirkendall, CK ;
Daley, K ;
Motley, S ;
Bautista, A ;
Salzano, J ;
Nash, PJ ;
Latchem, J ;
Crickmore, R .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2003, 15 (11) :1579-1581
[9]  
CRANCH GA, 2007, SPIE, V6619
[10]  
CRANCH GA, P 18 INT C OPT FIB S