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Saturday, August 1, 2020 | History

3 edition of Investigation of semiconductor clad optical waveguides found in the catalog.

Investigation of semiconductor clad optical waveguides

Investigation of semiconductor clad optical waveguides

  • 170 Want to read
  • 9 Currently reading

Published by Semiconductor Device Laboratory, Dept. of Electrical Engineering, School of Engineering and Applied Sciences, University of Virginia, National Aeronautics and Space Administration, National Technical Information Service, distributor in [Charlottesville, Va.], [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Glass.,
  • Integrated circuits.,
  • Integrated optics.,
  • Optical waveguides.

  • Edition Notes

    Statementsubmitted by T.E. Batchman, Richard F. Carson.
    SeriesNASA contractor report -- NASA CR-175870.
    ContributionsCarson, Richard F., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17684319M

    selective optical-power absorption at certain wavelengths, also known as resonances [22,23]. The LMR sensor, a wavelength-based detection system, was explored in by Marciniack [5] and, in that publication, the LMRs were explained as a coupling between optical waveguide modes and the lossy mode of a semiconductor-clad waveguide. INVESTIGATION OF DIRECT INTEGRATED OPTICS MODULATORS tivity in a semiconductor clad optical waveguide Wigure 2). The tion of progagating modes in a semiconductor clad waveguide (Figure 2) had been observed as the semiconductor cladding material was varied (Figure 3).

      Quantum Wells, Wires and Dots provides all the essential information, both theoretical and computational, to develop an understanding of the electronic, optical and transport properties of these semiconductor book will lead the reader through comprehensive explanations and mathematical derivations to the point where they can design semiconductor nanostructures with the. Engineering of metal-clad optical nanocavity to optimize coupling with integrated waveguides Article in Optics Express 21(22) November with 24 Reads How we measure 'reads'.

    Investigation of direct integrated optics modulators: A series of computer modeling studies were performed to determine the effects of semiconductor cladding on the fields of propagating waves in planar dielectric waveguides. These studies predicted that changes in the propagation characteristics of waveguides clad with silicon and gallium. The intensity dynamics of a five-emitter laser array subject to a linearly decreasing injection current are examined numerically. We have matched the results of the numerical model to an experimental AlGaAs quantum-dot array laser and have achieved the same robust oscillatory power output with a nearly π phase shift between emitters that was observed in experiments.


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Investigation of semiconductor clad optical waveguides Download PDF EPUB FB2

Investigation of semiconductor clad optical waveguides - NASA/ADS Glass waveguides are studied because of the ease and economy of fabricating devices in glass. Get this from a library. Investigation of semiconductor clad optical waveguides. [Ted E Batchman; Richard F Carson; United States.

National Aeronautics and Space Administration.]. Description The properties of semiconductor-clad optical waveguides based on glass substrates were investigated.

Computer modeling studies on four-layer silicon-clad planar dielectric waveguides indicated that the attenuation and mode index should behave as exponentially damped sinusoids as the silicon thickness is decreased below one micrometer.

A variety of techniques have been proposed for fabricating integrated optical devices using semiconductors, lithium niobate, and glasses as waveguides and substrates.

The use of glass waveguides and their interaction with thin semiconductor cladding layers was studied. Though the interactions of these multilayer waveguide structures have been analyzed here using glass, they may. Investigation of semiconductor clad optical waveguides. By R. Carson and T. Batchman.

Abstract. A variety of techniques have been proposed for fabricating integrated optical devices using semiconductors, lithium niobate, and glasses as waveguides and substrates. The use of glass waveguides and their interaction with thin semiconductor Author: R.

Carson and T. Batchman. The properties of semiconductor-clad optical waveguides based on glass substrates were investigated. Computer modeling studies on four-layer silicon-clad planar dielectric waveguides indicated that the attenuation and mode index should behave as exponentially damped sinusoids as the silicon thickness is decreased below one : T.

Batchman and G. Mcwright. Keywords: Silicon-clad waveguide, TE/TM pass polarizer, extinction ratio, Transfer matrix method. Introduction Multilayer waveguides are used in the implementation of variety of optical devices including modulators, waveguide polarizers, semiconductor lasers, Bragg reflectors, directional couplers and.

Planar optical waveguides consisting of thin dielectric films with metal cladding have been investigated theoretically and experimentally. A computer program was devised to provide the phase and attenuation constants and wavefunctions for TE and TM modes in symmetric and asymmetric guides.

Approximate expressions suitable for slide-rule calculation were also derived. Semiconductor Optoelectronics (Farhan Rana, Cornell University) Chapter 8 Integrated Optical Waveguides Dielectric Slab Waveguides Introduction: A variety of different integrated optical waveguides are used to confine and guide light on a chip.

The most basic optical waveguide is a slab waveguides shown below. 1 April Design of silicon waveguides with all-dielectric metamaterial cladding by Andraž Debevc, Janez Krč, and Marko Topič "Design of silicon waveguides with all-dielectric metamaterial cladding by employing numerical simulations", Proc Coupling And Absorption Phenomena In Semiconductor-Clad Dielectric Optical Waveguides.

Semiconductor optical waveguides are a very important part of modern integrated optoelectronic systems, especially for electrically active devices.

Applications range from semiconductor lasers, optical filters, switches, modulators, isolators, and photodetectors. An investigation study concerning optical fiber alignment and micro-mirror performance in MOEMS devices is being reviewed in this paper. The central attention of the study is the analysis of optical fibers positioning, alignment, bonding, optical improvements, coupling to micro-lenses for beam collimation and waveguides.

Also, we highlight features. INVESTIGATION OF OPTICAL LOSS CHANGES IN SILOXANE POLYMER WAVEGUIDES DURING THERMAL CURING AND AGING A Dissertation Presented to The Academic Faculty by Shashikant G.

Hegde In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the G.W. Woodruff School of Mechanical Engineering Georgia Institute of Technology April A hybrid group IV ridge waveguide platform is demonstrated, with potential application across the optical spectrum from ultraviolet to the far infrared wavelengths.

The waveguides are fabricated by partial etching of sub-micron ridges in a nanocrystalline diamond thin film grown on top of a silicon wafer. To create vertical confinement, the diamond film is locally undercut by exposing the chip. T.E. Batchman, G.M. Mcwright.

Mode coupling between dielectric and semiconductor planar waveguides. IEEE J. Quantum Electron, - 3) M. Koshiba, M. Suzuki. Numerical analysis of planar arbitrarily anisotropic diffused optical waveguides using finite-element method.

Electron. Lett. Recent interest in hybrid integrated optical devices have illustrated the need for comprehensive experimental studies of semiconductor-clad dielectric waveguides.

Studies are needed which verify theoretical predictions of the unique periodic coupling versus cladding thickness which occur in semiconductor loaded dielectric waveguides. This dissertation presents experimental results. The Semiconductor-Clad Waveguide The propagation effects to be discussed are of interest in several areas, including crystal-growth studies, self-focusing in solid-state lasers, and (for our v/ork) modulation in an optical waveguide.3,4,5 The waveguide structure of interest is shown in Fig.

Guided waves propagating in layer 3 couple into. The authors of the article with title “3D Multi-branched Semiconductor Nanostructures as Optical Waveguides” study of the light propagation in the SnO2 nanostructures using a micro-Raman objective, and focusing the laser beam spot to the multi-branched nanostructure s and observation light spots at the termination only when the light is focused to the node of each nanostructure.

In this work we demonstrate that the confinement factor value can strongly depend on the carrier density in long bulk semiconductor optical amplifiers with a ridge waveguide (RW-SOAs). Theoretically we shown that a dBm input beam increases the confinement factor in such a manner that the investigated mm length RW-SOA allows an.

Optical Waveguides Central to integrated optics is the concept of guiding light in dielectric waveguide structures with dimensions comparable to the wavelength of the guided light. In this section we present only a brief survey of the relevant physics and analysis techniques used to study their properties.

An all-optical fiber modulator with a graphene interlayer is theoretically proposed. The principle and mechanism of all-optical modulation based on graphene are theoretically deduced. Signal light with different photon energies will excite different concentrations of carrier density, which changes the dielectric constant of graphene.Surface plasmon modes of finite, planar, metal-insulator-metal plasmonic waveguides Jing Chen, Gennady A.

Smolyakov, Steven R. J. Brueck and Kevin J. Malloy* Center for High Technology Materials and Department of Electrical and Computer Engineering, University of New Mexico, Goddard SE, Albuquerque, New MexicoUSA.Multilayer waveguides are used in implementing variety of optical devices including semiconductor lasers, modulators, waveguide polarizers and directional couplers [].

Theoretical study of metal clad dielectric waveguides has been extensively covered by many researchers []. It .