Optical-Fiber Accelerometer Array: Nano-g Infrasonic Operation in a Passive 100 km Loop

In this paper, an all-optical accelerometer array system is presented, ideally suited for permanent seismic seabed arrays and passive surveillance. A directly measured accelerometer resolution of better than 60 ng/¿Hz (-145 dB/ reg/¿Hz) down to 10 Hz is achieved for all channels in a completely passive 100 km fiber loop. The detection bandwidth is chosen to be from 10 to 300 Hz, with a closed-loop dynamic range of 120 dB. The crosstalk between channels spaced by 100 GHz is better than -64 dB.

[1]  Daniel A Shaddock,et al.  Pico-strain multiplexed fiber optic sensor array operating down to infra-sonic frequencies. , 2009, Optics express.

[2]  G. A. Cranch,et al.  Distributed Feedback Fiber Laser Strain Sensors , 2008, IEEE Sensors Journal.

[3]  B. Bunn.  Fiber Optic 4C Seabed Cable for Permanent Reservoir Monitoring , 2008 .

[4]  Malcolm B. Gray,et al.  Multiplexed fiber optic sensor array for geophysical survey , 2008, International Conference on Optical Fibre Sensors.

[5]  J. T. Kringlebotn,et al.  Oil and gas applications: Probing oil fields , 2008 .

[6]  Fang Li,et al.  High-performance multiplexed vibration sensor system based on fiber lasers , 2007, SPIE/COS Photonics Asia.

[7]  FBG Sensor Module Performance Estimation , 2007, LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings.

[8]  Malcolm B. Gray,et al.  Multiplexed fiber optic acoustic sensors in a 120 km loop using RF modulation , 2007, SPIE Optics East.

[9]  S.J. Maas,et al.  Fiber Optic 4C Seabed Cable For Permanent Reservoir Monitoring , 2007, 2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

[10]  S. Foster,et al.  DFB FL Sensor Cross-Coupling Reduction , 2007, Journal of Lightwave Technology.

[11]  A. Tikhomirov,et al.  DFB FL sensor multiplexing noise , 2006, ACOFT/AOS 2006 - Australian Conference on Optical Fibre Technology/Australian Optical Society.

[12]  G. Edvell,et al.  A 16 channel fibre laser sensor array , 2006, ACOFT/AOS 2006 - Australian Conference on Optical Fibre Technology/Australian Optical Society.

[13]  David E McClelland,et al.  Laser frequency-noise-limited ultrahigh resolution remote fiber sensing. , 2006, Optics express.

[14]  David E McClelland,et al.  Demonstration of a passive subpicostrain fiber strain sensor. , 2005, Optics letters.

[15]  D. McClelland,et al.  Phase-sensitive interrogation of fiber Bragg grating resonators for sensing applications , 2004, Journal of Lightwave Technology.

[16]  S. Foster,et al.  Dynamical noise in single-mode distributed feedback fiber lasers , 2004, IEEE Journal of Quantum Electronics.

[17]  A. Bautista,et al.  Large-scale remotely pumped and interrogated fiber-optic interferometric sensor array , 2003, IEEE Photonics Technology Letters.

[18]  B. Drakeley,et al.  Permanent ocean bottom seismic systems to improve reservoir management , 2003 .

[19]  P. J. Nash,et al.  High-responsivity fiber-optic flexural disk accelerometers , 2000, Journal of Lightwave Technology.

[20]  David J. Webb,et al.  Fiber laser hydrophone array , 1999, Optics East.

[21]  Jonathan J. Bernstein,et al.  Low-noise MEMS vibration sensor for geophysical applications , 1999 .

[22]  B. T. Meggitt,et al.  Optical Fiber Sensor Technology , 1999 .

[23]  Y. Rao,et al.  Fiber Bragg grating sensors: principles and applications , 1998 .

[24]  Michael A. Davis,et al.  Fiber grating sensors , 1997 .

[25]  Peter Maxwell,et al.  Geophone Spurious Frequency: What is It And How Does It Affect Seismic Data? , 1996 .

[26]  A. Kersey,et al.  Experimental demonstration of a fiber Bragg grating accelerometer , 1996, IEEE Photonics Technology Letters.

[27]  A. Kersey.  A Review of Recent Developments in Fiber Optic Sensor Technology , 1996 .

[28]  P. Saulson,et al.  Thermal noise in mechanical experiments. , 1990, Physical review. D, Particles and fields.

[29]  Graham F. McDearmon,et al.  Fiber-Optic Hydrophone , 1990, Other Conferences.

[30]  Alan D. Kersey,et al.  Multiplexed Mach-Zehnder ladder array with ten sensor elements , 1989 .

[31]  A. S. Gerges,et al.  High-sensitivity fiber-optic accelerometer. , 1989, Optics letters.

[32]  A. Kersey,et al.  High-sensitivity fibre-optic accelerometer , 1982 .

[33]  Alan B. Tveten,et al.  Fibre optic accelerometer , 1980 .