Performance enhancement for a self-heterodyne detection Brillouin optical time-domain reflectometer
Sign Up to like & getrecommendations! Published in 2020 at "Optical Engineering"
DOI: 10.1117/1.oe.59.3.034103
Abstract: Abstract. Aiming at improving signal-to-noise ratio (SNR) and system performance for a Brillouin optical time-domain reflectometer (BOTDR) based on self-heterodyne detection of Rayleigh and Brillouin scattering lights, an approach assisted by modulating probe light and… read more here.
Keywords: time; brillouin optical; heterodyne detection; performance ... See more keywords
Heterodyne spectrometer sensitivity limit for quantum networking.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.459172
Abstract: Optical heterodyne detection-based spectrometers are attractive due to their relatively simple construction and ultrahigh resolution. Here we demonstrate a proof-of-principle single-mode optical-fiber-based heterodyne spectrometer that has picometer resolution and quantum-limited sensitivity around 1550 nm. Moreover,… read more here.
Keywords: heterodyne detection; quantum; limit; heterodyne spectrometer ... See more keywords
Performance evaluation of a time-division multiplexed fiber Bragg grating sensor based on heterodyne detection.
Sign Up to like & getrecommendations! Published in 2023 at "Applied optics"
DOI: 10.1364/ao.484944
Abstract: Using a technique to observe reflection spectra, the signal-to-noise ratio can be improved for time-division multiplexed interrogation of three fiber Bragg gratings (FBGs) based on heterodyne detection methods. To calculate peak reflection wavelengths of the… read more here.
Keywords: heterodyne detection; based heterodyne; fiber bragg; division multiplexed ... See more keywords
Effect of angle-of-arrival fluctuation on heterodyne detection in slant atmospheric turbulence.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.001083
Abstract: A mathematical model of the effect of random pointing errors on the mixing efficiency of heterodyne detection is established, and the effect of angle-of-arrival fluctuation on the mixing efficiency of heterodyne detection is investigated. The… read more here.
Keywords: angle arrival; detection; effect; heterodyne detection ... See more keywords
Analysis of a heterodyne detection system affected by irradiance and phase fluctuations in slant atmospheric turbulence.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.009596
Abstract: A mathematical model considering the effects of amplitude and phase random fluctuations on the signal-to-noise ratio (SNR) of heterodyne detection was established, and the effects of irradiance and phase fluctuations on the performance of heterodyne… read more here.
Keywords: phase fluctuations; heterodyne detection; irradiance phase;
Heterodyne detection of scattered light: application to mapping and tomography of optically inhomogeneous media.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.00b170
Abstract: The signal registered by a plane photodetector placed behind an optically inhomogeneous object irradiated by two coherent Gaussian beams intersecting inside the object at a small angle to each other is calculated in the single-scattering… read more here.
Keywords: detection scattered; optically inhomogeneous; application mapping; scattered light ... See more keywords
Direct-comb molecular spectroscopy by heterodyne detection with continuous-wave laser for high sensitivity.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.00a680
Abstract: We have demonstrated direct-comb molecular spectroscopy in which an individual-comb mode is resolved by heterodyne detection with a continuous-wave (cw) laser. This simple, fast, and sensitive technique was demonstrated for atomic spectroscopy in [ Appl.… read more here.
Keywords: comb molecular; heterodyne detection; molecular spectroscopy; spectroscopy ... See more keywords