Articles with "optical phase" as a keyword



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Optical phase conjugation with dual frame OFDM for dispersion and nonlinearity mitigation over multimode fiber

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Published in 2021 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-021-02736-y

Abstract: This paper presents a modification in conventional asymmetrically clipped optical OFDM (ACO-OFDM) frame for direct detection intensity modulation (DD-IM) system. The conventional ACO-OFDM for DD-IM utilizes only one-fourth of available subcarriers for information symbols and… read more here.

Keywords: optical phase; frame; phase conjugation; frame ofdm ... See more keywords
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Low threshold and high reflectivity of optical phase conjugate mode in transversely magnetized semiconductors

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2019.04.106

Abstract: Abstract In this paper, we developed a theoretical formulation to obtain threshold and reflectivity of optical phase conjugate mode (OPCM) in transversely magnetized semiconductors. Expressions are obtained for threshold value of pump intensity and reflectivity… read more here.

Keywords: optical phase; reflectivity; phase conjugate; reflectivity optical ... See more keywords
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Study of multistage composite loop control based on optical phase-locked loop technology

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Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.04.032

Abstract: Abstract The Doppler shift of the satellite-to-satellite coherent communication system reaches gigahertz magnitude. Owing to the influence of the linewidth and phase noise of the tuned laser, the optical phase-locked loop (OPLL) system is required… read more here.

Keywords: phase; optical phase; system; locked loop ... See more keywords
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Compact design of an optical phase shifter packaged with IST microheater used for integrated photonics

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Published in 2020 at "Results in physics"

DOI: 10.1016/j.rinp.2020.103644

Abstract: Abstract A design of compact optical phase shifter which is constructed by two cascading microring resonators and a corresponding packaged microheater is proposed. We illustrated that the footprint of the compact phase shifter could be… read more here.

Keywords: phase; phase shifter; optical phase; microheater ... See more keywords
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All-optical phase control in nanophotonic silicon waveguides with epsilon-near-zero nanoheaters

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Published in 2021 at "Scientific Reports"

DOI: 10.1038/s41598-021-88865-6

Abstract: A wide variety of nanophotonic applications require controlling the optical phase without changing optical absorption, which in silicon (Si) photonics has been mostly pursued electrically. Here, we investigate the unique light–matter interaction exhibited by epsilon-near-zero… read more here.

Keywords: phase; optical phase; usepackage; control ... See more keywords
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Quantitative comparison of tympanic membrane displacements using two optical methods to recover the optical phase

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Published in 2018 at "Journal of Modern Optics"

DOI: 10.1080/09500340.2017.1390173

Abstract: Abstract The study and quantification of the tympanic membrane (TM) displacements add important information to advance the knowledge about the hearing process. A comparative statistical analysis between two commonly used demodulation methods employed to recover… read more here.

Keywords: membrane displacements; phase; optical phase; recover optical ... See more keywords
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Readout of transient signal based on optical phase modulation

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Published in 2020 at "Journal of Instrumentation"

DOI: 10.1088/1748-0221/15/04/p04019

Abstract: In experiments of nuclear or particle physics, detectors always generate transient pulse signals, which usually has a very fast leading or trailing edge. With the development of modern physics experiments, reading out the nuclear signals… read more here.

Keywords: transient signal; optical phase; phase modulation; physics ... See more keywords
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Optical Phase Transition in Semiconductor Quantum Metamaterials.

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Published in 2019 at "Physical review letters"

DOI: 10.1103/physrevlett.123.117401

Abstract: Unexpected light propagation effects, such as negative refraction, have been reported in artificial media. Leveraging on the intersubband resonances in heterostructured semiconductors, we show that all possible optical regimes, ranging from classical dieletric and metal… read more here.

Keywords: quantum; optical phase; phase transition; quantum metamaterials ... See more keywords
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Bosonic Pair Production and Squeezing for Optical Phase Measurements in Long-Lived Dipoles Coupled to a Cavity.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.130.113202

Abstract: We propose to simulate bosonic pair creation using large arrays of long-lived dipoles with multilevel internal structure coupled to an undriven optical cavity. Entanglement between the atoms, generated by the exchange of virtual photons through… read more here.

Keywords: cavity; optical phase; long lived; bosonic pair ... See more keywords
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Waveband-Shift-Free Optical Phase Conjugator for Spectrally Efficient Fiber Nonlinearity Mitigation

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Published in 2018 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2018.2790799

Abstract: We discuss a novel broadband, polarization-insensitive, and wavelength-shift-free optical phase conjugator (OPC). In the OPC scheme, the original input signal is inherently suppressed in a polarization-diversity loop setup. This allows for spectrally efficient, wavelength-(band)-shift-free generation… read more here.

Keywords: shift; optical phase; shift free; free optical ... See more keywords
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Compensation of Mode Crosstalk in MDM System Using Digital Optical Phase Conjugation

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Published in 2019 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2019.2906403

Abstract: We propose to utilize the digital optical phase conjugation (D-OPC) technique for the compensation of mode crosstalk in the mode-division-multiplexed (MDM) transmission system. To realize the D-OPC technique, we send the CW light from the… read more here.

Keywords: phase conjugation; digital optical; compensation mode; phase ... See more keywords