Results 1 to 10 of about 3,023 (218)

Multifunctional Optical Crystals for All-Solid-State Raman Lasers

open access: yesCrystals, 2021
In the past few decades, the multifunctional optical crystals for all-solid-state Raman lasers have been widely studied by many scholars due to their compactness, convenience and excellent performance.
Hui Zhao   +5 more
doaj   +1 more source

Deep Learning-Based Robust Visible Light Positioning for High-Speed Vehicles

open access: yesPhotonics, 2022
Robustness is a key factor for real-time positioning and navigation, especially for high-speed vehicles. While visible light positioning (VLP) based on LED illumination and image sensors is widely studied, most of the VLP systems still suffer from the ...
Danjie Li   +12 more
doaj   +1 more source

Graphene-Fiber Biochemical Sensors: Principles, Implementations, and Advances

open access: yesPhotonic Sensors, 2021
Single atomically thick graphene, with unique structural flexibility, surface sensitivity, and effective light-mater interaction, has shown exceptional advances in optoelectronics. It opens a door for diverse functionalized photonic devices, ranging from
Ning An   +8 more
doaj   +1 more source

Recent Advances in Phase-Sensitive Optical Time Domain Reflectometry (Ф-OTDR)

open access: yesPhotonic Sensors, 2021
Phase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh backscattering light in sensing fiber. In particular, fiber-optic distributed
Yunjiang Rao   +4 more
doaj   +1 more source

Energy Transfer and Cross-Relaxation Induced Efficient 2.78 μm Emission in Er3+/Tm3+: PbF2 mid-Infrared Laser Crystal

open access: yesCrystals, 2021
An efficient enhancement of 2.78 μm emission from the transition of Er3+: 4I11/2 → 4I13/2 by Tm3+ introduction in the Er/Tm: PbF2 crystal was grown by the Bridgman technique for the first time. The spectroscopic properties, energy transfer mechanism, and
Jiayu Liao   +10 more
doaj   +1 more source

Tera-sample-per-second arbitrary waveform generation in a synthetic dimension

open access: yesCommunications Physics, 2023
Synthetic dimension opens new horizons in quantum physics and topological photonics by enabling new dimensions for field and particle manipulations.
Yiran Guan   +8 more
doaj   +1 more source

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

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

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

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

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