Articles with "phase modulation" as a keyword



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Soliton‐mode proliferation induced by cross‐phase modulation of harmonic waves by a dark‐soliton crystal in optical media

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Published in 2021 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32945

Abstract: The generation of high-intensity optical fields from harmonic-wave photons, interacting via a crossphase modulation with dark solitons both propagating in a Kerr nonlinear medium, is examined. The focus is on a pump consisting of time-entangled… read more here.

Keywords: cross phase; modulation; soliton; phase modulation ... See more keywords
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Impact of initial pulse characteristics on the mitigation of self-phase modulation by sinusoidally time varying phase

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Published in 2018 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-018-1319-1

Abstract: A simple and efficient approach to suppress undesirable self-phase modulation (SPM) of optical pulses propagating in fiber-optic systems is based on imposing a sinusoidal temporal phase modulation on the pulses to offset the chirp generated… read more here.

Keywords: modulation; initial pulse; phase modulation; impact initial ... See more keywords
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A review on spatial self-phase modulation of two-dimensional materials

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Published in 2019 at "Journal of Central South University"

DOI: 10.1007/s11771-019-4174-8

Abstract: Self-diffraction appears when the strong laser goes through two-dimensional material suspension, and this spatial self-phase modulation (SPPM) phenomenon can be used to measure nonlinear optical parameters and achieve optical switch. At present, the mechanism of… read more here.

Keywords: spatial self; phase modulation; two dimensional;
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Experimental demonstration of optical single sideband signal generation based on multi-frequency phase modulation in optical fibers

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2019.02.012

Abstract: Abstract We theoretically analyzed and experimentally demonstrated the feasibility of optical single sideband (OSSB) signal generation based on multi-frequency phase modulation. The numerically calculated results show that OSSB signal can be efficiently generated with the… read more here.

Keywords: frequency; sideband; phase modulation; frequency phase ... See more keywords
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Nonlinear absorption and spatial self-phase modulation in Ag2Se colloidal nanocrystals

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Published in 2018 at "Materials Letters"

DOI: 10.1016/j.matlet.2017.11.130

Abstract: Abstract The third-order optical nonlinearities of Ag2Se nanocrystals were investigated by using Z-scan techniques. Large optical susceptibility χ(3) with the imaginary and real parts of 5.0 × 10−11 esu and −(3.0 ± 0.2) × 10−9 esu has been obtained under 1 mW laser excitation,… read more here.

Keywords: phase; nonlinear absorption; absorption spatial; phase modulation ... See more keywords
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Real time phase modulation measurements in liquid crystals

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Published in 2017 at "Opto-electronics Review"

DOI: 10.1016/j.opelre.2017.03.004

Abstract: Abstract We propose real time phase measurements in liquid crystals cells using Young's interferometer constructed with a new principle with possibility to control the distance between two point sources. The optical interference optical pattern is… read more here.

Keywords: phase; measurements liquid; real time; time phase ... See more keywords
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Optical limiting using spatial self-phase modulation in hot atomic sample

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Published in 2017 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2016.09.001

Abstract: Abstract In this work, we characterized the performance of optical limiting by self-phase modulation (SPM) in hot atomic vapor cell. The results indicated that the performance of the optical limiter is closely related to the… read more here.

Keywords: sample; hot atomic; phase modulation; optical limiting ... See more keywords
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Effect of quintic nonlinearity on self-phase modulation and modulation instability in multiple coupled quantum wells under electromagnetically induced transparency

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Published in 2020 at "Results in physics"

DOI: 10.1016/j.rinp.2020.103090

Abstract: Abstract The self-phase modulation and modulation instability of an optical probe electromagnetic field in multiple quantum well systems under electromagnetically induced transparency has been investigated. The probe field experiences large Kerr and quintic nonlinearities that… read more here.

Keywords: modulation; nonlinearity; phase modulation; modulation modulation ... See more keywords
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Boosting dispersive wave emission via spectral phase shaping in nonlinear optical fibers

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Published in 2020 at "Results in physics"

DOI: 10.1016/j.rinp.2020.103518

Abstract: Abstract Dispersive waves (DWs) radiation in optical fibers allow to excite frequencies in spectral regions that are otherwise difficult to access. However, the resonant emission is weak and phase matching inhibits its shaping, making it… read more here.

Keywords: phase; spectral phase; phase modulation; nonlinear optical ... See more keywords
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Amplified Photothermal Phase Modulation for Carbon Dioxide Detection by Operating a Dual-Mode Interferometer at Destructive Interference.

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Published in 2023 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.2c05482

Abstract: Photothermal interferometry is a highly sensitive spectroscopic technique for trace gas detection. However, the performance of the state-of-the-art laser spectroscopic sensors is still insufficient for some high-precision applications. Here, we demonstrate optical phase-modulation amplification by… read more here.

Keywords: detection; dual mode; carbon dioxide; phase modulation ... See more keywords
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All-Optical Switching of Two Continuous Waves in Few Layer Bismuthene Based on Spatial Cross-Phase Modulation

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Published in 2017 at "ACS Photonics"

DOI: 10.1021/acsphotonics.7b00849

Abstract: Bismuthene, the last and heaviest group-VA elemental two-dimensional material, has received tremendous interests owing to its advantages in electronic-transport, semimetallic bonding, and intrinsic spin-orbit coupling. However, light–bismuthene interaction is relatively less investigated. Herein, sonochemical exfoliation… read more here.

Keywords: optical switching; layer bismuthene; bismuthene; phase modulation ... See more keywords