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IEEE Journal of Quantum Electronics

Issue 11 • November 1973

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Displaying Results 1 - 18 of 18
  • [Front cover and table of contents]

    Publication Year: 1973, Page(s): 0
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    Freely Available from IEEE
  • An unstable ring resonator

    Publication Year: 1973, Page(s):1061 - 1063
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (926 KB)

    An unstable ring resonator has been studied, both theoretically and experimentally; quasi-traveling-wave operation is obtained with a high ratio of the powers of the two opposite rotating waves and with diffraction-limited output beams. View full abstract»

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  • A comparative evaluation between internal and external polarization modulation of lasers

    Publication Year: 1973, Page(s):1086 - 1097
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2850 KB)

    A comparison is made between internal polarization modulation (IPM) (or coupling modulation) and external polarization modulation (EPM). This is done for the case of maximum-available laser signal power output when both bias and drive voltages are optimized, as well as for the case of a small fixed drive voltage but optimized bias conditions. Signal-to-noise ratio and efficiency is also considered... View full abstract»

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  • A new method for reducing pattern effect in PCM current modulation of DH-GaAlAs lasers

    Publication Year: 1973, Page(s):1098 - 1101
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (963 KB)

    A new method for reducing the pattern effect in PCM current modulation of DH-GaAlAs lasers without superposition of dc bias current is demonstrated at 200 Mb/s. Also PCM current-modulation characteristics are analyzed by simulation using nonlinear rate equations. View full abstract»

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  • Characterization of large-aperture CO2amplifier

    Publication Year: 1973, Page(s):1122 - 1123
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (709 KB)

    Detailed, spatially resolved gain measurements have been made on a UV preionized 9 \times 9 \times 50 -cm atmospheric pressure discharge. View full abstract»

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  • A large-aperture high-extinction-ratio Faraday-rotator isolator

    Publication Year: 1973, Page(s):1124 - 1125
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (515 KB)

    A 45° Faraday rotator has been built at the Naval Research Laboratory. This rotator is designed for use with a short-pulse high-peak-power laser, and it has demonstrated an extinction ratio in excess of 35 dB. View full abstract»

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  • [Back cover]

    Publication Year: 1973, Page(s): 0
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    Freely Available from IEEE
  • Ellipse rotation studies in laser host materials

    Publication Year: 1973, Page(s):1064 - 1069
    Cited by:  Papers (111)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1952 KB)

    Using a TEM00qnear Gaussian mode ruby laser system we report the first experimental measurements of intensity induced changes of optical polarization (ellipse rotation) in a cubic crystalline medium, YAG, for which we obtain the nonlinear susceptibilities ... View full abstract»

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  • Laser action from atmospheric-pressure H2-F2mixtures made at 300K

    Publication Year: 1973, Page(s):1123 - 1124
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Thirty-five photons ( \lambda = 3 \mu m) per photolytic F atom have been obtained from a 40-cm3photochemical laser filled with 400 torr of F2, 100 torr of H2, and minor amounts of Ar and O2mixed at 300 K. With 0.035-percent dissociation of the F2, 0.83-J 250-ns full width at half maximum (FWHM) pulses wer... View full abstract»

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  • Coupled-mode theory of unstable resonators

    Publication Year: 1973, Page(s):1102 - 1113
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3536 KB)

    Although there has been a sustained interest in unstable open resonators for high-power laser applications, no satisfactory theory has previously been developed to explain the intricate behavior of the complex eigenvalues obtained by numerical solution of the resonator integral equation. The present study proposes a remarkably simple model that predicts the basic features of the published results.... View full abstract»

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  • Thin metal film room-temperature IR bolometers with nanosecond response time

    Publication Year: 1973, Page(s):1044 - 1053
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3072 KB)

    The experimental and theoretical investigation of thin-film metal (bismuth, antimony, chromium, nickel) bolometers on beryllium oxide substrates is described. Responsivity, sensitivity (NEP), and time response data for each type of metal bolometer are compared with the results obtained from a thermal analysis of the bolometer. Thin-film bismuth devices can have a responsivity of View full abstract»

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  • High repetition-rate effects in TEA lasers

    Publication Year: 1973, Page(s):1120 - 1122
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    Experimental studies have been conducted into the dominant effects and possible limitations of TEA CO2laser operation at high repetition rates. These studies were carried out in a small channel which provided for a uniform gas flow at atmospheric pressure transverse to a finned-cathode double-discharge structure. Measurements taken over a range of circuit and gas conditions showed that ... View full abstract»

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  • Interferometric measurement of SELFOCregdielectric constant coefficients to sixth order

    Publication Year: 1973, Page(s):1114 - 1118
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1720 KB)

    A simple and sensitive interferometric technique which yields accurate measurements of the 2nd- , 4th-, and 6th-order coefficients of the series expansion for the radial distribution of the dielectric constant of SELFOC or other GRIN rods is reported. Such data are required, for example, in predicting temporal dispersion in SELFOC fiber waveguides. The interferometer directly measures the relative... View full abstract»

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  • Mechanisms for self-focusing in optical glasses

    Publication Year: 1973, Page(s):1054 - 1061
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2560 KB)

    The relative contributions of the Kerr, electrostrictive, and thermal effects to the self-focusing thresholds of borosilicate crown glass, fused silica, and dense flint glass have been estimated from an analysis of damage-threshold data for linearly polarized and circularly polarized radiation. The measurements were made with a Nd:glass laser operating in the TEM00mode with a temporal p... View full abstract»

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  • Improved temporal stability of polymethine laser dyes in aqueous solutions

    Publication Year: 1973, Page(s):1119 - 1120
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    Polymethine laser dyes which fluoresce in the near infrared in organic solvents generally exhibit poor temporal stability at room temperature. Two typical laser-pumped polymethine dyes in aqueous solutions containing nonionic surfactants are investigated. Temporal stability was improved 20-fold, as compared to organic solutions, with no significant changes in laser-pumping threshold or tuning rang... View full abstract»

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  • Mode-locked ring-laser and ring-amplifier characteristics

    Publication Year: 1973, Page(s):1039 - 1043
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1560 KB)

    Mode-locked ring oscillators and ring amplifiers have been investigated experimentally and theoretically. Numerical solutions to the rate equations showed that nonlinear losses have to be introduced into the rate equations in order to explain the experimental observations. The theory yields operating conditions for mode locking in good agreement with the experiment. Application of this theory to r... View full abstract»

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  • Short-pulse multiline and multiband energy extraction in high-pressure CO2-laser amplifiers

    Publication Year: 1973, Page(s):1070 - 1078
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2368 KB)

    The ability of a nanosecond or shorter CO2-laser pulse consisting of a single vibrational-rotational transition to extract energy from an atmospheric-pressure CO2amplifier is limited owing to the finite rotational thermalization time in CO2and the larger number of rotational states which share the stored energy. Theoretical studies are reported which indicate that ... View full abstract»

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  • Laser action from Ho3+, Er3+, and Tm3+in YAlO3

    Publication Year: 1973, Page(s):1079 - 1086
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2640 KB)

    Laser action has been observed for the following rare-earth ions in YAlO3:Ho3+(sensitized with Er3+and Tm3+), Er3+, and Tm3+(sensitized with Er3+) at wavelengths of 2.123, 0.851, and 1.861 μm, respectively. Measurements of spectroscopic properties, fluorescence kinetics, and laser performance of these ions in YAlO... 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..

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Meet Our Editors

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