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Education, IEEE Transactions on

Issue 2 • Date May 1992

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Displaying Results 1 - 13 of 13
  • A BS degree in photonics

    Page(s): 122 - 125
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    Course and implementation recommendations are presented for establishing a BS degree in photonics, a discipline combining elements of both physics and electrical engineering with an emphasis in modern optics. The assumptions providing the basic framework for the work are discussed. The options available to graduates of the suggested program are pointed out View full abstract»

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  • Visualization of modal irradiance patterns in an optical fiber

    Page(s): 109 - 111
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (176 KB)  

    A laboratory exercise that allows the student to combine theory, numerical computation methods, and experimental observation to learn more about electromagnetic modes and modal patterns is presented. It provides students with the opportunity to derive the field equations and the characteristic equations from first principles, solve for the parameters of the modes and plot them, and visually compare the modes observed in the laboratory with those calculated View full abstract»

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  • Tunneling through a total internal reflection layer

    Page(s): 112 - 114
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    The tunneling phenomenon known as frustrated total internal reflection is described in classic texts and research papers, but students are generally not exposed to the concept in standard optics or electromagnetics courses. It is shown that the tunnel effect may serve as the basis of a nonresonant lossless optical filter. The resolution capabilities of this filter are rather limited, and the best performance that may be achieved is shown to be independent of the specific indexes of refraction or polarization View full abstract»

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  • Analog circuit simulation of magnetic dipole behavior according to the Langevin-Weiss theory of ferromagnetism

    Page(s): 153 - 158
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (436 KB)  

    An analog electronic circuit designed to illustrate the principles of ferromagnetism by simulating the behavior of elementary magnetic dipoles as described by the Langevin-Weiss theory is presented. The device is intended to help undergraduate students master the fundamental ideas that explain the properties of ferromagnetic materials. The circuit design is described and related to the concepts used in the Langevin-Weiss theory, which is briefly outlined. Results obtained with the simulator are presented as oscilloscope traces and illustrate some of its possible uses View full abstract»

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  • Some experiments on semiconductor laser characteristics

    Page(s): 133 - 137
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (300 KB)  

    The use of an off-axis holograpic optical element (HOE) as a powerful spectrograph to observe the buildup of laser oscillation as excitation is increased through the threshold value is described. The spectrum in the focal plane may be sensed by a charge-coupled device with output displayed on an oscilloscope screen. The lessons that can be learned from this experiment are discussed View full abstract»

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  • Photonics enrichment of the EE curriculum

    Page(s): 103 - 108
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    The authors describe how the conventional undergraduate electrical engineering curriculum can accommodate, and be enriched by, an infusion of optical-related subjects. Some combination of the following is recommended: incorporating material on photonics into existing electrical engineering core courses; offering photonic electives for undergraduate electrical engineering students; offering photonics options (well-defined curricula for students wishing to specialize in photonics) within existing electrical engineering or physics departments; and developing independent degree programs in photonics View full abstract»

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  • An electrical network approach to the analysis of semiconductor devices

    Page(s): 144 - 152
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    A simple electrical network is used to represent the five differential equations describing basic phenomena in one-dimensional semiconductor devices. Both standard and integrated approaches for solving transport equations are developed. Also, an electrical network equivalent for the nonlinear Poisson equation was derived. It allows students to better understand the physical phenomena and the process of computer simulation of such semiconductor devices View full abstract»

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  • PSpice circuit generation through the method of simulated annealing

    Page(s): 159 - 163
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    A software package that was developed to generate a graphical representation of an electrical circuit diagram from a PSpice text file is described. This package uses the simulated annealing method for multivariate optimization. This algorithm is applied to global component connections and circuit design of realistic size and complexity View full abstract»

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  • Interference and Fresnel diffraction

    Page(s): 126 - 132
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    It is shown that a surprising number of traditional topics, such as the Rayleigh resolution criterion, spatial filtering, bandlimited signals, the sampling theorem, phase contrast microscopy, and white light holography, can be explained using simple interference theory. These basic results are then easily extended to the N-source case to introduce diffraction theory, and facilitate the teaching of the elements of modern optics to junior and senior-level students View full abstract»

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  • A simple all-optical light switch and its relations to optical computing: a demonstration for teaching photonics

    Page(s): 115 - 121
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (688 KB)  

    The authors discuss how a simple and inexpensive all-optical light switch can be built for teaching and demonstrating photonics in a classroom or for undergraduate lab experiments. The discussion of this readily understandable device will familiarize the student with the similarities and differences between photonics and electronics. As an example, the authors consider how this device relates to all-optical computing circuits, promoting a comparison between electronic and optical integrated circuits View full abstract»

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  • An optical transmitter/receiver system for wireless voice communication

    Page(s): 138 - 143
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    The design of an optical transmitter/receiver system, suitable as an educational project for the demonstration of low-noise wireless voice communication in the laboratory, is described. The system, having a range in excess of 8 m, uses a VCO (voltage-controlled oscillator), operating at the center frequency of 100 kHz, to achieve voice data encoding. Optical decoding at the receiver is performed using a conventional phase-locked loop (PLL) circuit. As an optoelectronics design project, the system successfully integrates the concepts of free-space optical communication, frequency modulation, and analog electronics design, which are common to infrared (IR) remote control devices View full abstract»

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  • An effective approach to obtain model parameters for BJTS and FETS from data books

    Page(s): 164 - 169
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    The authors address the problem of obtaining the values of small signal parameters of the high frequency hybrid-π models of bipolar junction transistors (BJTs) and junction FETs (JFETs) for a given set of bias conditions from the data-book values. They also show the methods of determining the 'typical' values of the input parameters to be used in the model statements of circuit simulators, such as SPICE View full abstract»

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  • Transient electromagnetic plane wave reflection from a dielectric slab

    Page(s): 170 - 175
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    Reflection of a transient plane wave normally incident upon a lossless dielectric slab is analyzed via the Fourier transform. The exact expression for the time-harmonic field is used in the inverse Fourier transform to obtain the transient response to a class of exponential exciting functions. Cauchy's integral theorem and the Poisson sum formula yield closed-form expressions for the unit step and impulse response functions View full abstract»

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Educational research, methods, materials, programs, and technology in electrical engineering, computer engineering, and fields within the scope of interest of IEEE.

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Jeffrey E. Froyd
Texas A&M University