[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Zhao et al., 2022 - Google Patents

Interferometric fiber-optic hydrophone system based on linear frequency modulation

Zhao et al., 2022

Document ID
7644841325984043513
Author
Zhao M
Mao Y
Wang Z
Yin F
Xu K
Dai Y
Publication year
Publication venue
Journal of Lightwave Technology

External Links

Snippet

Microwave photonic sensing is an emerging technology that uses broadband analog optical signal processing to help traditional optical sensor achieve higher detection speed, sensitivity, and resolution. In this article, we use microwave photonic approach to improve …
Continue reading at ieeexplore.ieee.org (other versions)

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/112—Line-of-sight transmission over an extended range
    • H04B10/1121—One-way transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers i.e., optical receivers using an optical local oscillator
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction

Similar Documents

Publication Publication Date Title
Zornoza et al. Self-heterodyne detection for SNR improvement and distributed phase-shift measurements in BOTDA
Wu et al. Bipolar-Coding $\Phi $-OTDR with Interference Fading Elimination and Frequency Drift Compensation
WO2019134302A1 (en) Distributed fiber-optical acoustic sensing device and method based on digital dual-chirped pulse modulation
CN104180833A (en) Optical time domain reflectometer simultaneously sensing temperature and stress
Zheng et al. High-resolution multiple microwave frequency measurement based on stimulated Brillouin scattering
Yan et al. Forward transmission based ultra-long distributed vibration sensing with wide frequency response
CN103837165A (en) Brillouin time-domain analysis system based on Brillouin laser and automatic heterodyne detection
Zuo et al. Photonic-assisted filter-free microwave Doppler frequency shift measurement using a fixed low-frequency reference signal
Wang et al. Generation of frequency septupled chirped microwave waveforms with increased TBWP based on two cascaded polarization modulators
Liao et al. Phase sensitivity characterization in fiber-optic sensor systems using amplifiers and TDM
Guo et al. Single-arm frequency-shifted interferometry using a bidirectional electro-optic modulator
Li et al. Pulse coding in distributed optical fiber vibration sensor: A review
Zhao et al. Interferometric fiber-optic hydrophone system based on linear frequency modulation
Zhou et al. Long-range high-spatial-resolution distributed measurement by a wideband Brillouin amplification-boosted BOCDA
Wang et al. Interference fading suppression using active frequency transformation method with auxiliary interferometer feedback
Chen et al. Photonic-enabled Doppler frequency shift measurement for weak echo signals based on optical single-sideband mixing using a fixed low-frequency reference
CN113098595A (en) Method, system and device for measuring group delay of few-mode optical fiber differential mode
Xiong et al. High performance CP-ΦOTDR utilizing the negative band
Fernández-Ruiz et al. Time expansion in distributed optical fiber sensing
Zhao et al. Optical Phase‐Sensitive Reflectometry Based on Orthogonal Frequency‐Division Multiplexed LFM Signal in Fractional Fourier Domain
Zhou et al. Truly distributed and ultra-fast microwave photonic fiber-optic sensor
Du et al. Transmission of dual-chirp microwave signal over fiber with suppression chromatic-dispersion-induced power-fading based on stimulated Brillouin scattering
CN113686424A (en) High signal-to-noise ratio acoustic sensing system based on wavelength diversity technology and multi-wavelength combination method
Chen et al. Health monitoring of long-haul fiber communication system using chaotic OTDR
Soriano-Amat et al. Millimetric spatial resolution time-expanded ϕ-OTDR