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Quantum Electronics, IEEE Journal of

Issue 1 • Date January 1979

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Displaying Results 1 - 15 of 15
  • [Front cover and table of contents]

    Publication Year: 1979 , Page(s): 0
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    Freely Available from IEEE
  • A family of perfect aspherical geodesic lenses for integrated optical circuits

    Publication Year: 1979 , Page(s): 1 - 4
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (523 KB)  

    An aspherical geodesic lens having f = 4.5 mm and f /number = 0.64 has been built and tested for use in integrated optics. Its capability to carry out the spectral analysis of a signal is discussed. This lens is a member of a family of theoretically perfect geodesic lenses, characterized by an arbitrary choice of two parameters. This allows one to match the properties of a lens to the particular application one has in mind. View full abstract»

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  • A pulsed tranversely excited CO2waveguide laser

    Publication Year: 1979 , Page(s): 4 - 6
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    We have designed a CO2waveguide laser that can produce pulses with durations of about 15 μs, and pulse energies up to 0.7 mJ, with a maximum laser efficiency of about 1.5 percent, and capable of working at pressures up to about frac{1}/{2} atm. The laser head and the discharge system that excites the laser gas are described. Some physical limitations of the efficiency and the laser energy are also described. View full abstract»

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  • Dielectric-waveguide-modal properties: A new analysis of the one-dimensional wave equation

    Publication Year: 1979 , Page(s): 17 - 26
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    This paper studies the modal character of optical, dielectric waveguides with arbitrary spatial variation (in one dimension) of the dielectric coefficient, a subject vital to the development of optical fibers, strip waveguides, semiconductor lasers, etc. Within (but not limited to) this context, a new mathematical tool is presented for analysis of solutions of the general second-order, linear, homogeneous differential equation, which, when put into its canonical form, is the wave equation: d^{2}Y/dx^{2} + u(\eta, x)Y = 0 . The central theme is the development and study of the uses of a "mantle function" which simultaneously describes two, complementary solutions. It is shown how the method provides new analytical insights; new, more convenient techniques for numerical evaluation of eigensolutions; and a firm basis for evaluating the merits of existing approximation methods, e.g., the Wentzel-Kramer-Brillouin (WKB) method. View full abstract»

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  • Correction to "Third-order nonlinearities in molecular hydrogen: Two-photon resonance enhanced third-harmonic generation and Raman scattering"

    Publication Year: 1979 , Page(s): 54
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    First Page of the Article
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  • [Back cover]

    Publication Year: 1979 , Page(s): 0
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    Freely Available from IEEE
  • Experimental verification of modal dispersion free characteristics in a two-mode optical fiber

    Publication Year: 1979 , Page(s): 6 - 8
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (344 KB)  

    Group delay time difference between LP01and LP11modes has been measured in a step-index type optical fiber over a two-mode region. The measured results have revealed that there exists a wavelength at which the group delay times of the two modes are coincident. View full abstract»

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  • Design of whitelight laser based on cathode fall theory

    Publication Year: 1979 , Page(s): 35 - 44
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (912 KB)  

    A method is proposed to design a hollow-cathode type whitelight laser by applying the cathode fall theory. Several design examples and their oscillation characteristics are presented. The concentric-cylinder-type laser tube is found to be suitable for a long life, high power green laser, but some difficulties exist in its use as a white-light laser. The flute-type laser tube, however, appears to be suitable as a whitelight laser. View full abstract»

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  • Gain and optical extraction measurements in a pulser-sustained CO2laser

    Publication Year: 1979 , Page(s): 50 - 54
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    Operational data on small-signal gain, gain profile, and optical power extraction is presented for a photoinitiated impulse-enhanced electrically excited (PIE) CO2laser. The measurements taken as a function of gas composition, input power loading, and flow velocity reveal a strong similarity to electron beam-sustained machines. The relatively simple construction and operational characteristics exhibited by the device may render it industrially viable. View full abstract»

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  • Single-photon optical heterodyning

    Publication Year: 1979 , Page(s): 26 - 29
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    Optical heterodyning has been observed at the single-photon level by recording the sinusoidal variation in the probability for detection of a photoelectron from a photomultiplier tube illuminated with a FM laser and a local oscillator laser. The single-photon character of the heterodyne process was demonstrated by observation of beat signals at total power levels down to 6 \times 10^{-15} W where the spacing between photons emitted from the source laser was \sim40 000 times greater than their transit time through the apparatus. View full abstract»

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  • Operational characteristics of a PIE CO2laser

    Publication Year: 1979 , Page(s): 44 - 50
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    The design and operational characteristics of a high power pulser-sustained CW CO2laser is described. The "photoinitiated impulse-enhanced electrically excited" structure possesses operational features similar to an "electron beam-sustained" device and as such may provide a relatively simple and inexpensive alternative in high power CO2laser design. View full abstract»

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  • High power far-infrared emission from CO2laser-pumped D2S and HDS

    Publication Year: 1979 , Page(s): 8 - 11
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    Intense superfluorescent emission in the far infrared has been produced for the first time at wavelengths of \lambda = 135.7 \mu m and \lambda = 90.1 \mu m from D2S pumped with a CO2TEA laser. The pump and emission lines have been assigned to molecular transitions in the ν2vibrational mode. An additional strong line at \lambda = 183.2 \mu m has been attributed to the HDS molecule. View full abstract»

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  • The reliability of a practical Ga1-xAlxAs laser device

    Publication Year: 1979 , Page(s): 11 - 13
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (344 KB)  

    A GaAlAs DH-laser hybrid device is described that compensates for temperature variations and laser degradation. Lifetesting in a 55°C ambient for over a year yields a projected room-temperature median lifetime of 6 \times 10^{5} h. Lasers having no aluminum in the active layer have a median lifetime 70 times smaller. View full abstract»

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  • InGaAsP/InP photodiodes: Microplasma-limited avalanche multiplication at 1-1.3-µm wavelength

    Publication Year: 1979 , Page(s): 30 - 35
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (840 KB)  

    Photodiodes for use in the 1-1.3-\mu m wavelength region have been fabricated from double-heterostructure InGaAsP/InP wafers grown by liquid-phase epitaxy (LPE). The measured avalanche multiplication in mesa-configuration devices was limited to values of 10 or less. The results of careful measurement of the photoresponse, quantum efficiency, and reverse-bias I-V characteristics suggest that the gain is limited by microplasma breakdown. The density of microplasmas was estimated to be about 106cm-2, approximately equal to the etch pit density of the InP substrates used in growth of the epitaxial layers. View full abstract»

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  • Exact solutions for TM modes in graded index slab waveguides

    Publication Year: 1979 , Page(s): 14 - 16
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (280 KB)  

    Three continuous profiles for the dielectric constant are derived, which allow exact solutions of the vector wave equation, including all terms in the gradient of the profile, for both TE and TM modes on slab waveguides. The dielectric constant has been assumed to be a scalar quantity; i.e., the medium is isotropic. View full abstract»

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Aims & Scope

The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics..

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Aaron R. Hawkins
Brigham Young University