2014
DOI: 10.1364/ol.39.002522
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Chalcogenide waveguides on a sapphire substrate for mid-IR applications

Abstract: We report on the fabrication of arsenic tri-sulfide chalcogenide strip waveguides on a sapphire substrate, suitable for guiding 0.55-5 μm wavelengths. Propagation losses measured using the Fabry-Perot resonator technique are 2.78  dB/cm. The chalcogenide layer refractive index dispersion is evaluated by measuring the transmission as a function of wavelength prior to waveguide fabrication. Numerical simulations are used to compare between silica and sapphire substrates for mid-IR transmittance and to calculate … Show more

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Cited by 8 publications
(2 citation statements)
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“…They are considered as typical glasses for infrared applications [3,4] and provide good candidates for photo-structural optical recording [5], acousto-optic devices [6,7] and advanced IR optical fibers [8]. They also provide solid-state physicists with new solutions for the challenging fundamental problems that relate to the possible technological applications for these glasses [7,9].…”
Section: Introductionmentioning
confidence: 99%
“…They are considered as typical glasses for infrared applications [3,4] and provide good candidates for photo-structural optical recording [5], acousto-optic devices [6,7] and advanced IR optical fibers [8]. They also provide solid-state physicists with new solutions for the challenging fundamental problems that relate to the possible technological applications for these glasses [7,9].…”
Section: Introductionmentioning
confidence: 99%
“…[215] Second, we summarize various waveguide shapes including both the theoretical and experimental structures, and introduce various fabrication methods of these structures. Different structures have been applied in the SCG, such as, the wire waveguide, [101,111,112,114,125,181,212,[216][217][218][219][220][221] buried waveguide, [39,[222][223][224][225] rib waveguide, [173,162,[226][227][228][229][230][231][232] suspended waveguide, [232,233] waveguide being over-etched into the buried oxide, [206] waveguide with buried silicon oxide layer being underetched, [234] waveguide with a round-shaped core at the bottom side, [235,236] and the waveguide with sidewall angle. [214,223,237,238] The dotted box in Figure 3 denotes the waveguide structures used for the SCG modelling only, and the remaining ones are the fabricated structures that have been used in the SCG experiments.…”
Section: Various Types Of Uniform Waveguides For Supercontinuum Gener...mentioning
confidence: 99%