Results 291 to 300 of about 5,004,125 (344)
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Confinement loss in adiabatic photonic crystal fiber tapers
Journal of the Optical Society of America B, 2006We numerically study confinement loss in photonic crystal fiber (PCF) tapers and compare our results with previously published experimental data. Agreement between theory and experiment requires taking into account hole shrinkage during the tapering process, which we measure by using a noninvasive technique.
Boris T. Kuhlmey +3 more
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Confinement loss in solid-core photonic bandgap fibers
Optics Communications, 2004Abstract It is shown in this paper through simulation that the confinement loss of a down-doped solid-core photonic bandgap (PBG) fiber can be reduced to the level of 0.01 dB/km by only 84 air holes, with an air hole diameter to pitch ratio d / Λ =0.8 and air-filling fraction=35%. The practicality of solid-core PBG fibers is thus enhanced.
Ni Yi +4 more
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Dependence Of Y-Branch Loss On Waveguide Mode Confinement
SPIE Proceedings, 1989The losses in the bends and branches associated with Y-junctions used in interferometers in LiNbO3 have been studied as a function of the mode confinement in the arms of the interferometers. Results are presented both when the confinement is changed by varying the fabrication technique and also when the confinement is changed by varying the incident ...
R. H. Rediker, L. M. Eriksen, T. A. Lind
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Reducing optical confinement losses for fast, efficient nanophotonic modulators
2017 IEEE Photonics Society Summer Topical Meeting Series (SUM), 2017We demonstrate high-speed operation of ultracompact electroabsorption modulators based on epsilon-near-zero confinement in indium oxide (In 2 O 3 ) on silicon using field-effect carrier density tuning. Additionally, we discuss strategies to enhance modulator performance and reduce confinement-related losses by introducing high-mobility conducting ...
Gordon A. Keeler +8 more
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Dependence of tokamak confinement on ELM power loss
2016Die Energie-Einschlusszeit TE ist eine Messgr e, die beschreibt, wie lange Energie in einem Plasma eingeschlossen bleibt. Studien f r die Tokamak-Einschlusszeit mit mehreren Tokamaks wurden verwendet um Skalierungen abzuleiten, die auf sogenannten Engineering-Parametern beruhen.
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Low confinement loss hybrid-guiding tellurite photonic bandgap fiber
Optical Fiber Technology, 2012Abstract A hybrid-guiding tellurite (TZNLP) photonic bandgap fiber (PBGF) with low confinement loss is presented in this paper. A detailed comparison between the hybrid-guiding tellurite PBGF in which the high-index rods (TLWMN) replace one row of air holes in the radial direction and the all-solid tellurite PBGF has been accomplished.
Tonglei Cheng +5 more
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