Results 11 to 20 of about 136,205 (300)

Broadband, Polarization-Sensitive, and Self-Powered High-Performance Photodetection of Hetero-Integrated MoS2 on Lithium Niobate

open access: yesResearch, 2023
High-performance photodetectors hold promising potential in optical communication and imaging systems. However, conventional counterparts are suffering narrow detection range, high power consumption, and poor polarization sensitivity.
Zhigang He   +10 more
doaj   +1 more source

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry [PDF]

open access: yes, 2019
The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of ...
Chang, J.   +7 more
core   +1 more source

Fiber-Optic Sensing Technology [PDF]

open access: yes, 1996
This article offers a basic review of fiber-optic sensing technology, or more specifically, fiber-optic sensing technology as applied to the qualitative or quantitative identification of a chemical sample, and how it works,
Milnes, M., Baylor, L.C., Bave, S.
openaire   +2 more sources

Computational distributed fiber-optic sensing

open access: yesOptics Express, 2019
Ghost imaging allows image reconstruction by correlation measurements between a light beam that interacts with the object without spatial resolution and a spatially resolved light beam that never interacts with the object. The two light beams are copies of each other.
Zhou, Da-Peng   +3 more
openaire   +3 more sources

Fiber Optic Magnetic Field Sensor Based on Magnetic Nanoparticle Assembly in Microcapillary Ring Resonator

open access: yesIEEE Photonics Journal, 2017
A magnetic field sensor based on the magnetic-field-induced nanoparticle assembly effect in microcapillary whispering gallery mode (WGM) ring resonator is proposed and experimentally demonstrated.
Zhe Yu   +6 more
doaj   +1 more source

Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]

open access: yes, 2019
Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J.   +9 more
core   +1 more source

Efficient fiber-optical interface for nanophotonic devices [PDF]

open access: yes, 2014
We demonstrate a method for efficient coupling of guided light from a single mode optical fiber to nanophotonic devices. Our approach makes use of single-sided conical tapered optical fibers that are evanescently coupled over the last ~10 um to a ...
de Leon, N. P.   +6 more
core   +2 more sources

LD-Pumped Random Fiber Laser Based on Erbium-Ytterbium Co-Doped Fiber

open access: yesPhotonic Sensors, 2019
In this paper, a cladding-pumped erbium-ytterbium co-doped random fiber laser (EYRFL) operating at 1550 nm with high power laser diode (LD) is proposed and experimentally demonstrated for the first time.
Qingyang Meng   +4 more
doaj   +1 more source

All-fiber optical nonreciprocity based on parity-time-symmetric Fabry-Perot resonators

open access: yesCommunications Physics, 2022
Optical nonreciprocity is of fundamental importance for signal processing in modern optical communication systems but is still facing issues on either high energy consumption, complicated design or on-chip integration.
Zheng Li   +5 more
doaj   +1 more source

Distributed flow sensing using optical hot-wire grid [PDF]

open access: yes, 2012
An optical hot-wire flow sensing grid is presented using a single piece of self-heated optical fiber to perform distributed flow measurement. The flow-induced temperature loss profiles along the fiber are interrogated by the in-fiber Rayleigh ...
Chen, KP   +4 more
core   +1 more source

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