Results 21 to 30 of about 44,543 (314)
All-fiber optical nonreciprocity based on parity-time-symmetric Fabry-Perot resonators
Communications 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
Photonic 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
Photonic crystal fiber half-taper probe based refractometer [PDF]
, 2014 A compact singlemode - photonic crystal fiber - singlemode fiber tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving technique is utilised to provide a clean-cut fiber tip which is then coated by a layer of gold to ...
Bo, Lin +8 more
core +1 more source
Quantitative sensitivity analysis of surface attached optical fiber strain sensor [PDF]
, 2014 Optical fiber strain sensors, in particular, the fiber Bragg grating (FBG) type, are widely applied in different applications. The most common installation method is surface-attached.
Wan, KT
core +1 more source
Computational distributed fiber-optic sensing
Optics 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
Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers [PDF]
, 2012 Tapered optical fibers with nano-assembled coatings of thicknesses of order tens of nanometres were used for the detection of ammonia gas. The film coating was composed of alternate layers of tetrakis-(4-sulfophenyl) porphine (TSPP) and poly(allylamine ...
Lee, Seung-Woo +5 more
core +1 more source
Nature Communications, 2023 Ultra-high extinction ratio (ER) optical modulation is crucial for achieving high-performance fiber-optic distributed acoustic sensing (DAS) for various applications.
Zhuo Cheng +10 more
doaj +1 more source
Versatile Tunning of Compact Microring Waveguide Resonator Based on Lithium Niobate Thin Films
Photonics, 2023 With the advancement of modulation technology and the requirement for device miniaturization and integration, lithium niobate on insulator (LNOI) can be a versatile platform for this pursuit, as it can confine the transmitted light at the nanoscale ...
Qijing Lin +9 more
doaj +1 more source
IEEE Photonics Journal, 2021 We demonstrate a microfiber Bragg grating as the reflective refractometer with the function of self-photoheating. The rare earth-doped fiber provides not only the photosensitivity to the UV modulation but also the effective pump laser absorption and ...
Yongkang Zhang +6 more
doaj +1 more source
Short cavity DFB fiber laser based vector hydrophone for low frequency signal detection
Photonic Sensors, 2017 A short cavity distributed feedback (DFB) fiber laser is used for low frequency acoustic signal detection. Three DFB fiber lasers with different central wavelengths are chained together to make three-element vector hydrophone with proper sensitivity ...
Xiaolei Zhang +7 more
doaj +1 more source