scholarly journals Temperature-independent fiber Bragg grating underwater acoustic sensor array using incoherent light

2006 ◽  
Vol 27 (1) ◽  
pp. 50-52 ◽  
Author(s):  
Satoshi Tanaka ◽  
Hiroki Yokosuka ◽  
Nobuaki Takahashi
Keyword(s):  
Fiber Bragg Grating ◽  
Sensor Array ◽  
Bragg Grating ◽  
Acoustic Sensor ◽  
Incoherent Light ◽  
Underwater Acoustic

Underwater Acoustic Sensor Using Optical Fiber Bragg Grating as Detecting Element

1999 ◽  
Vol 38 (Part 1, No. 5B) ◽  
pp. 3233-3236 ◽  
Author(s):  
Nobuaki Takahashi ◽  
Kanta Tetsumura ◽  
Sumio Takahashi
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Acoustic Sensor ◽  
Underwater Acoustic ◽  
Optical Fiber Bragg Grating

scholarly journals Experiment on operation of WDM underwater acoustic sensor using Fiber Bragg Grating.

1999 ◽  
Vol 20 (2) ◽  
pp. 143-145
Author(s):  
Kanta Tetsumura ◽  
Nobuaki Takahashi ◽  
Sumio Takahashi
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Acoustic Sensor ◽  
Underwater Acoustic

Fiber Bragg grating WDM underwater acoustic sensor with directivity

1999 ◽  
Author(s):  
Nobuaki Takahashi ◽  
Kanta Tetsumura ◽  
Kazuo Imamura ◽  
Sumio Takahashi
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Acoustic Sensor ◽  
Underwater Acoustic

Underwater Acoustic Sensor with Fiber Bragg Grating

1997 ◽  
Vol 4 (6) ◽  
pp. 691-694 ◽  
Author(s):  
Nobuaki Takahashi ◽  
Akihiro Hirose ◽  
Sumio Takahashi
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Acoustic Sensor ◽  
Underwater Acoustic

A New Underwater Acoustic Sensor Based on Fiber Bragg Grating Packaged with Polymer Material

2010 ◽  
Vol 663-665 ◽  
pp. 926-929
Author(s):  
Zhi Zhong Li ◽  
Yuan Zheng ◽  
Wei Guo Dai ◽  
Yi Chuan Wang
Keyword(s):  
Fiber Bragg Grating ◽  
Polymer Material ◽  
Bragg Grating ◽  
Modulation Scheme ◽  
Acoustic Sensor ◽  
Pressure Sensitivity ◽  
Acoustic Detection ◽  
Underwater Acoustic ◽  
Narrow Line Width ◽  
Underwater Target

A new kind of passive underwater acoustic sensor based on fiber Bragg grating is reported. The pressure sensitivity of the sensor is enhanced three orders of magnitude being packaged with polymer material, which is a foundation for underwater acoustic detection. An intensity modulation scheme is adopted to realize high-accuracy detection due to the extra-narrow line-width laser. The experimental results show that the sensor’s noise-limited pressure detection resolution is about 61dB (0dB＝1μPa/ Hz ) at 500 Hz, which satisfies the application of underwater target detection.

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