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http://dx.doi.org/10.5573/ieek.2013.50.12.287

A Study on The low-frequency Hydrophone Using Single-mode FBG in the Hopper Type WDM be in the Making  

Kim, Kyung Bok (kyungbok University, computer science)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.12, 2013 , pp. 287-291 More about this Journal
Abstract
The low- frequency hydrophone sensor, using the recently developed FBG has an excellent merits which the existing fiber-optic sensor has and also it has an excellent signal sensing effect in the environment of low-frequency(30Hz-300Hz), not to be detected by the PZT sensor. we have the detection of frequency 19KHz right signals when was using more Hopper lenz WDM than $1{\times}3$ optical coupler. furthermore, we can expect the uitilization of low-frequency signal detection to be used for the military purpose and also it can be developed as the high-sensibility multiplexing through the sensor array system.
Keywords
hydrophone sensor; low-frequency signal detection; FBG sensor; hydrophone sensor array system; hopper type WDM;
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