DFB Fiber Laser Hydrophone With Flat Frequency Response and Enhanced Acoustic Pressure Sensitivity

Ma, Lei; Hu, Yongming; Luo, Hong; Hu, Zhengliang

doi:10.1109/lpt.2009.2026180

Cited by 30 publications

(12 citation statements)

References 12 publications

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“…2. The DFB FL sensor is a fiber laser hydrophone with ultrahigh pressure sensitivity [15]. The total length of the laser cavity is 40 mm, and the phase shift section is 4 mm long.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Study of Rayleigh-backscattering induced coherence collapse in an asymmetric DFB FL sensor

et al. 2016

Photonic Sens

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Rayleigh-back scattering induced coherence collapse of an asymmetric distributed feedback fiber laser (DFB FL) sensor is investigated using a composite cavity model. The coherence collapse threshold condition of the asymmetric DFB FL sensor is measured. The DFB FL sensor shows different dynamic behaviors in different pump configurations. According to the asymmetric behavior to the external optical feedback, a novel method to find the actual phase shift position of the asymmetric DFB FL sensor is presented.

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“…2. The DFB FL sensor is a fiber laser hydrophone with ultrahigh pressure sensitivity [15]. The total length of the laser cavity is 40 mm, and the phase shift section is 4 mm long.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Study of Rayleigh-backscattering induced coherence collapse in an asymmetric DFB FL sensor

et al. 2016

Photonic Sens

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show abstract

“…According to the transfer function (1), the amplitude of the acoustic pressure is (9) and the resonant frequencies of are (10)…”

Section: Sensor Designmentioning

confidence: 99%

DFB Fiber Laser Hydrophone With an Acoustic Low-Pass Filter

Zhang

et al. 2011

IEEE Photon. Technol. Lett.

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A novel distributed-feedback (DFB) fiber laser hydrophone with an acoustic low-pass filter is presented. An aluminous cover with an orifice in the center is used to eliminate high-frequency acoustic components. The acoustic pressure response is theoretically analyzed based on an electro-acoustic method. Two types of hydrophones of this kind have been fabricated and tested. The experimental results over the range of 10 to 2000 Hz are in good agreement with the theoretical expectations.

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“…Compared to optical interferometric hydrophone technology, emerging Distributed FeedBack (DFB) fiber laser hydrophone technology presents key advantages such as compactness and reduced complexity interrogation scheme [2,3,4,10]. High performance hydrophone design [8,9] associated with optimized DFB fiber laser cavity for dense hydrophone multiplexing capability on a single optical fiber [13] remains a key challenge for this promising new acoustic array technology.…”

Section: Introductionmentioning

confidence: 99%

Acoustic antenna based on fiber laser hydrophones

et al. 2014

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For underwater surveillance applications, an all-optical acoustic array technology allows enhanced capabilities compared to conventional piezoelectric antenna in terms of compactness, robustness and large distance remote interrogation through small diameter optical cable. One major issue about this kind of antenna is the design of a compact sensitive optical hydrophone which is optimized for reduced temperature sensitivity and high static pressure capability. This paper presents the results obtained on a first full optical antenna panel based on an innovative wideband fiber laser hydrophone. The presented mock-up includes 12 fiber laser optical hydrophones interrogated through a 12 km lead optical cable.

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DFB Fiber Laser Hydrophone With Flat Frequency Response and Enhanced Acoustic Pressure Sensitivity

Cited by 30 publications

References 12 publications

Study of Rayleigh-backscattering induced coherence collapse in an asymmetric DFB FL sensor

Study of Rayleigh-backscattering induced coherence collapse in an asymmetric DFB FL sensor

DFB Fiber Laser Hydrophone With an Acoustic Low-Pass Filter

Acoustic antenna based on fiber laser hydrophones

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