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IEEE Journal of Quantum Electronics

Issue 1 • Date January 1971

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Displaying Results 1 - 16 of 16
  • [Front cover and table of contents]

    Publication Year: 1971, Page(s): 0
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    Freely Available from IEEE
  • Demultiplexers for high-speed optical PCM

    Publication Year: 1971, Page(s):24 - 29
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (718 KB)

    Optical demultiplexers have been developed for a time-division-multiplexed (TDM) high-capacity optical pulse code modulation (PCM) terminal. The demultiplexing is accomplished by assigning two orthogonal linearly polarized states of light to adjacent pulses using an electrooptic modulator and then spatially separating them with a polarization selective prism. The process is repeated until all the ... View full abstract»

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  • Comments on "Enhancement of optical receiver sensitivities by amplification of the carrier"

    Publication Year: 1971, Page(s): 42
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (151 KB)

    First Page of the Article
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  • [Back cover]

    Publication Year: 1971, Page(s): 0
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    Freely Available from IEEE
  • Ultrahigh-speed photography of picosecond light pulses

    Publication Year: 1971, Page(s):37 - 39
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    A new technique for the display of picosecond light pulses is presented. Ultrashort (6 ps) green light pulses passing through a light-scattering medium are photographed from the side by a camera positioned behind a shutter of 10-ps framing time. The shutter is an ultrafast Kerr cell driven by infrared pulses 8 ps in duration. Color photographs show a bright spot on a dark background, revealing the... View full abstract»

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  • On the spiking phenomenon in organic dye lasers

    Publication Year: 1971, Page(s):36 - 37
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The spiking condition of dye lasers is analyzed by means of a small-signal approximation of the rate equations. Dye lasers are generally operated close to the border region between spiking and nonspiking. An initial spike is observed in the output beam of a flash-lamp-excited rhodamine 6G laser with a shortened cavity. View full abstract»

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  • Signature variations with mirror separation for small sealed CO2lasers

    Publication Year: 1971, Page(s):29 - 35
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    A detailed experimental study of laser signature as a function of laser mirror distance variations is reported. This was done for small sealed low-power CO2lasers (≈ 1 watt) of the type useful in laser communication. It is shown that most laser-output profiles change drastically from half-wavelength to half-wavelength except the strong P(20) line, which seems to remain relatively ... View full abstract»

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  • Interferometric measurement of refractive index and temperature profiles in a pulsed CO2laser amplifier

    Publication Year: 1971, Page(s):17 - 22
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    The spatial and temporal refractive-index changes produced by a pulsed discharge in a CO2-N2mixture, under conditions which produce gains in excess of 10 dB/m, have been measured experimentally using an interferometric technique. The spatial refractive-index variation can lead to a significant increase in the divergence of a beam propagating through a laser amplifier a few me... View full abstract»

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  • Theory of Fabry-Perot resonators with dielectric medium

    Publication Year: 1971, Page(s):1 - 11
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    A Fabry-Perot resonator filled with a dielectric slab is investigated using the Vainshtein method. Simple and explicit formulas are obtained for the diffraction loss, phase shift, and field distributions for both strip and circular mirrors. It is found that the presence of the dielectric reduces the diffraction loss, and causes mode confinement to certain degrees. View full abstract»

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  • On the excitation mechanism of the He-Zn laser

    Publication Year: 1971, Page(s):40 - 41
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    By means of fluorescence, decay measurements in a He-Zn pulsed afterglow, the Zn II laser transitions at 5894 and 7479 Å have been assigned to Penning collisions with He(23S1) metastable atoms. The Zn II 6102-Å transition is ascribed to charge transfer collisions with He+. Penning and charge transfer cross sections are presented. View full abstract»

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  • Laser action of dyes in gelatin

    Publication Year: 1971, Page(s):45 - 46
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    High-gain directional stimulated emission has been observed for a number of dyes in gelatin with pumping by a nitrogen laser or a liquid dye laser. For some dyes the gel is made with water and gelatin; for others a detergent must be added or glycerin used instead of water. View full abstract»

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  • Optical second-harmonic generation in isocyclic and heterocyclic organic compounds

    Publication Year: 1971, Page(s):42 - 43
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Second-harmonic generation experiments show that large optical nonlinearities are associated with isocyclic and heterocyclic organic groups. The nonlinearities in one compound of the pyrimidine family, 5-Nitrouracil, are estimated to be as large as in barium-sodium niobate. View full abstract»

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  • Saturation and discharge studies in the He-Cd laser

    Publication Year: 1971, Page(s):11 - 17
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    The results of experimental studies of the various saturation effects and of discharge processes that occur in He-Cd lasers are presented and interpreted. It was found that the laser output can be adequately described by means of the rate equations. Based on these rate equations and the experimental results, the output and configuration of the He-Cd laser may be optimized. An estimate of the trans... View full abstract»

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  • Mode competition and self-locking in a multipass CO2laser

    Publication Year: 1971, Page(s):22 - 24
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    Observation of self-locking is reported in a CO2multipass laser. Phase-locked pulsing occurred at or in multiples of the cavity round-trip transit time. The observed pulse half-widths ranged from 60 to 70 ns. View full abstract»

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  • Signal structure of continuously self-pulsing GaAs lasers

    Publication Year: 1971, Page(s):43 - 45
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    CW-excited GaAs lasers can emit self-induced pulses. To study these pulses we have used an intensity correlator involving phase-matched second-harmonic generation in LiIO3. Besides measuring the pulsewidth and the repetition rate we investigated the amplitude fluctuations within a pulse and the correlation between fluctuations of consecutive pulses. View full abstract»

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  • Continuous visible and near-infrared laser action in Hg II

    Publication Year: 1971, Page(s):39 - 40
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    CW laser oscillation from singly ionized mercury at 6150 and 7945 Å has been observed in a transverse-discharge slotted hollow-cathode laser. Population inversion is attributed to charge transfer and Penning-type ionization reactions. 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