Diaphragm resonance-based fiber optic hydrophone

Indu Fiesler Saxena; Narciso Guzman; Kaleonui J. Hui; Stephen Pflanze

doi:10.1117/12.852898

27 April 2010 Diaphragm resonance-based fiber optic hydrophone

Indu Fiesler Saxena, Narciso Guzman, Kaleonui J. Hui, Stephen Pflanze

Proceedings Volume 7675, Photonics in the Transportation Industry: Auto to Aerospace III; 76750O (2010) https://doi.org/10.1117/12.852898
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Passive hydrophones with a minimal footprint are useful for a variety of underwater monitoring applications; a fiber optic hydrophone is being investigated. Fiber optic hydrophones have been used in offshore moored applications, and have the capability to cover large areas. A resonant hydrophone using a fiber Bragg grating (FBG) transducer for limited bandwidth operation is described and compared with predicted diaphragm resonances. A battery-power readout system using a laser diode source that can typically operate for a full day, and can be used in off-mooring applications such as in autonomous underwater vehicles, is outlined.

Citation Download Citation

Indu Fiesler Saxena, Narciso Guzman, Kaleonui J. Hui, and Stephen Pflanze "Diaphragm resonance-based fiber optic hydrophone", Proc. SPIE 7675, Photonics in the Transportation Industry: Auto to Aerospace III, 76750O (27 April 2010); https://doi.org/10.1117/12.852898

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