Results 21 to 30 of about 49,209 (264)

Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications

open access: yesNew Journal of Physics, 2019
Waveguides in nonlinear materials are a key component for photon pair sources and offer promising solutions to interface quantum memories through frequency conversion.
Matteo Santandrea   +3 more
doaj   +1 more source

Direct recognition of Raman spectra without baseline correction based on deep learning

open access: yesAIP Advances, 2022
Raman spectroscopy, widely used for material analysis, has formed an extensive spectral library. In practical applications, it is usually necessary to preprocess Raman spectroscopy of the target material and then identify the material through spectral ...
Yuping Liu   +3 more
doaj   +1 more source

Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber

open access: yesIEEE Photonics Journal, 2022
This letter reports the fabrication of fiber Bragg gratings (FBGs) within in-house fabricated fluoroaluminate (AlF3) glass fibers using femtosecond (fs) laser inscription at 800 nm.
Lin She   +11 more
doaj   +1 more source

All-optical nonvolatile optical modulator for in-fiber operation

open access: yesNanophotonics, 2023
The control of information is a defining feature of the information age, and the optical modulator likewise has a crucial role in optical networks. The transmission, processing, and storage of data have demanded low energy consumption and high speed for ...
Liu Zhihai   +10 more
doaj   +1 more source

Improving SPDC single-photon sources via extended heralding and feed-forward control

open access: yesNew Journal of Physics, 2019
Evolving photonic quantum technologies and applications require higher and higher rates of single photon generation. In parallel, it is required that these generated photons are kept spectrally pure for multi-photon experiments and that multi-photon ...
Marcello Massaro   +4 more
doaj   +1 more source

High-Resolution Distributed Dispersion Characterization for Polarization Maintaining Fibers Based on a Closed-Loop Measurement Framework

open access: yesIEEE Photonics Journal, 2017
A closed-loop dispersion measurement framework (CLDM) is proposed. Carrying out dispersion compensation with an arbitrary trial dispersion on the interferogram under test, and using a criterion function as feedback to adjust the trial dispersion until ...
Zhangjun Yu   +8 more
doaj   +1 more source

Operation of Fabry-Perot laser with nonlinear PT-symmetric mirror [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The above-threshold operation of a Fabry-Perot laser with a nonlinear PT (parity time) mirror is investigated. For the first time, the analysis accounts for gain saturation of an active medium as well as gain and loss saturation effects in the PT mirror.
Agnieszka Mossakowska-Wyszyńska   +2 more
doaj   +1 more source

High-Order Interference Effect Introduced by Polarization Mode Coupling in Polarization—Maintaining Fiber and Its Identification

open access: yesSensors, 2016
The high-order interference (HOI)—The interferogram introduced by polarization mode couplings (PMC) of multiple perturbations—Will cause misjudgment of the realistic coupling points in polarization-maintaining fiber (PMF) which is tested with a white ...
Chuang Li   +7 more
doaj   +1 more source

Modal Interferometer Using Three-Core Fiber for Simultaneous Measurement Strain and Temperature

open access: yesIEEE Photonics Journal, 2016
A structure made of tapered three-core fiber and CO2 laser notch long-period fiber grating is proposed in this paper. By adjusting the taper waist diameter of a three-core fiber, this structure is made suitable for simultaneous strain and temperature ...
Tao Geng   +7 more
doaj   +1 more source

Integrated Optical Beam Steerers [PDF]

open access: yesOptical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013
Beam steering plays an important role in ultra-fast switching and scanning applications. This paper discusses the possibilities of the silicon photonics platform to fabricate integrated beam steerers using active phase tuning or wavelength tuning.
Van Acoleyen, Karel   +3 more
openaire   +2 more sources

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