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IEEE Journal of Quantum Electronics

Issue 9 • Date September 1976

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Displaying Results 1 - 12 of 12
  • [Front cover and table of contents]

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • Antisymmetric taper of distributed feedback lasers

    Publication Year: 1976, Page(s):532 - 539
    Cited by:  Papers (194)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    In a distributed feedback (DFB) laser with spatial index modulation, an antisymmetric taper of the feedback parameter, k , removes the threshold degeneracy, which is characteristic of uniform structures, and leads to one mode of particularly low threshold. Exact solutions are presented for the special case of an antisymmetric step of View full abstract»

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  • Far-infrared laser oscillations from H2CO

    Publication Year: 1976, Page(s):547 - 549
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (399 KB)

    Lasting laser oscillation was obtained from H2CO vapor with a longitudinal-flow tube. Ten lasing lines, including six new lines, have been observed in the pressure range of 0.18-0.35 torr. The optimum conditions were 2.5-7.1 kV and 2.5 Hz for excitation voltage and pulse repetition rate, respectively. The pulse shape of the lines was observed by an Ni-W diode. View full abstract»

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  • A simplified method for determination of the induced-emission cross section of neodymium doped glasses

    Publication Year: 1976, Page(s):551 - 554
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (442 KB)

    Induced-emission cross sections for the4 F_{3/2}\rightarrow 4 I_{11/2} and4 F_{3/2} \rightarrow 4 I_{13/2} transitions of Nd3+in glasses can be determined with a satisfactory precision by a... View full abstract»

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  • [Back cover]

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • Fifth-harmonic generation in isotropic media

    Publication Year: 1976, Page(s):521 - 531
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1136 KB)

    This paper presents a theoretical study of fifth-harmonic generation (FHG) in an isotropic media. Two schemes are discussed-cascade generation in which the fifth harmonic results from successive nonlinear interactions in two separate elements, and direct generation where the fifth harmonic is produced in an isotropic media with third-and fifth-order nonlinear susceptibilities. In the plane-wave ap... View full abstract»

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  • Discharge pumping of dye vapors

    Publication Year: 1976, Page(s):539 - 542
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    We report the results of a study of discharge-excited dye vapors. For 20 dyes, fluorescence output was measured as a function of buffer gas, temperature, and discharge parameters. Although fluorescence efficiencies as high as 6 percent were obtained at low power levels, saturation effects limited the output fluorescence to values corresponding to gains of less than 0.2 cm-1. View full abstract»

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  • Efficient generation of continuously tunable coherent radiation in the 2460-2650-Å spectral range

    Publication Year: 1976, Page(s):555 - 556
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    Continuously tunable coherent radiation in the 2460- 2650-Å spectral range has been achieved by second harmonic generation (SHG) of a dye laser in a 90° phase-matched ADP crystal, temperature tuned between-116°C and 52°C. The 8.4-percent conversion efficiency obtained at a fundamental power of 9.6 kW is approximately 5 times larger than that reported earlier for SHG at these wa... View full abstract»

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  • Saturated spectroscopy applied to Xenon at 3.5 µm

    Publication Year: 1976, Page(s):543 - 547
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    We report the observation of the xenon isotope spectrum using saturation spectroscopy on a gain cell external to a He-Xe laser. Six resonances centered about 3.508μm are observed over the limited tuning range of the laser. These resonances are assigned to the Xe128Xe130Xe131Xe132Xe134and Xe136isotopes. The observed homogeneous ... View full abstract»

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  • Optically pumped epitaxial GaAs waveguide lasers with distributed Bragg reflectors

    Publication Year: 1976, Page(s):549 - 551
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Fabrication and characteristics of epitaxial waveguide lasers with distributed Bragg reflectors are described. GaAs-(GaAl)As double-layered structures were grown by conventional liquid-phase-epitaxy (LPE) technique. Periodic corrugations were made by chemical etching through a photoresist grating mask. Laser action with clearly defined logitudinal modes was observed under optical pumping at liquid... View full abstract»

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  • Controlled energy extraction and sharp nanosecond pulses from an HF amplifier

    Publication Year: 1976, Page(s):556 - 558
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    We report complete spatial control of laser energy extracted from an electron-beam-initiated HF amplifier. Control was achieved by application of a weak oscillator beam, which, by extraction of all of the available energy, overcame amplified spontaneous emission. In a separate experiment, temporal control was also demonstrated. Short (4-ns) sharp (contrast ∼20) amplified pulses were obtained... View full abstract»

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  • Tunable two-wavelength mode locking of the CW dye laser

    Publication Year: 1976, Page(s):554 - 555
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    Tunable model-locked laser output is achieved at two wavelengths with a CW dye laser containing a rhodamine 6G and a cresyl violet jet. Rhodamine 6G is pumped by a mode-locked argon laser. Output pulses of 4-5 ps duration are obtained. 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