Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Towards single-photon Brillouin optical time domain reflectometry
View through CrossRef
We investigate a novel distributed Brillouin optical time domain reflectometer (BOTDR) using standard telecommunication fibers based on single-photon avalanche diodes (SPADs) in gated mode, ν −BOTDR, with a range of 120 km and 10 m spatial resolution. We experimentally demonstrate the ability to perform a distributed temperature measurement, by detecting a hot spot at 100 km. Instead of using a frequency scan like conventional BOTDR, we use a frequency discriminator based on the slope of a fiber Bragg grating (FBG) to convert the count rate of the SPAD into a frequency shift. A procedure to take into account the FBG drift during the acquisition and perform sensitive and reliable distributed measurements is described. We also present the possibility to differentiate strain and temperature.
Optica Publishing Group
Title: Towards single-photon Brillouin optical time domain reflectometry
Description:
We investigate a novel distributed Brillouin optical time domain reflectometer (BOTDR) using standard telecommunication fibers based on single-photon avalanche diodes (SPADs) in gated mode, ν −BOTDR, with a range of 120 km and 10 m spatial resolution.
We experimentally demonstrate the ability to perform a distributed temperature measurement, by detecting a hot spot at 100 km.
Instead of using a frequency scan like conventional BOTDR, we use a frequency discriminator based on the slope of a fiber Bragg grating (FBG) to convert the count rate of the SPAD into a frequency shift.
A procedure to take into account the FBG drift during the acquisition and perform sensitive and reliable distributed measurements is described.
We also present the possibility to differentiate strain and temperature.
Related Results
Combined Radiation and Temperature Effects on Brillouin-Based Optical Fiber Sensors
Combined Radiation and Temperature Effects on Brillouin-Based Optical Fiber Sensors
The combined effects of temperature (from −80 °C to +80 °C) and 100 kV X-ray exposure (up to 108 kGy(SiO2)) on the physical properties of Brillouin scattering and losses in three d...
Polarization effects on Brillouin gain in single-mode fibers
Polarization effects on Brillouin gain in single-mode fibers
Stimulated Brillouin scattering is one of the most important nonlinear effects in single-mode fibers. Brillouin gain depends on the polarization states of pump and Stokes fields. S...
Coherent GNSS reflections over the sea surface - A classification for reflectometry
Coherent GNSS reflections over the sea surface - A classification for reflectometry
<p><span>The exploitation of GNSS signals for reflectometry opens several fields of application over the ocean, land and in the cryosphere. Coherence of...
Les modes de résonance acoustique dans les fibres optiques microstructurées : applications aux capteurs répartis
Les modes de résonance acoustique dans les fibres optiques microstructurées : applications aux capteurs répartis
Ce travail de thèse rassemble nos résultats d’étude sur l’utilisation des modes de résonance acoustique pour réaliser des capteurs distribués à base des fibres à cristaux photoniqu...
The photon blockade effect of a complete Buck-Sukumar model
The photon blockade effect of a complete Buck-Sukumar model
The Buck-Sukumar (BS) model, with a nonlinear coupling between the atom and the light field, is well defined only when its coupling strength is lower than a critical coupling. Its ...
Quantum-enhanced imaging with SPAD array cameras
Quantum-enhanced imaging with SPAD array cameras
(English) Entangled photon pairs can enhance optical imaging capabilities. Phase imaging allows detecting fine detail of transparent samples without potentially invasive fluorescen...
Monitoring a commercially operating submarine telecom cable network in the Guadeloupe archipelago (Lesser Antilles) using Brillouin Optical Time Domain Reflectometry (BOTDR)
Monitoring a commercially operating submarine telecom cable network in the Guadeloupe archipelago (Lesser Antilles) using Brillouin Optical Time Domain Reflectometry (BOTDR)
Submarine telecom cables criss-cross the oceans, connecting islands to continents and providing internet, financial and media services to consumers all around the world. Laser refl...
Multi‐Photon Microscopy
Multi‐Photon Microscopy
AbstractIn this series of papers on light microscopy imaging, we have covered the fundamentals of microscopy, super‐resolution microscopy, and lightsheet microscopy. This last revi...