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IEEE Journal of Quantum Electronics

Issue 11 • November 1982

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Displaying Results 1 - 25 of 29
  • [Front cover and table of contents]

    Publication Year: 1982, Page(s): 0
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    Freely Available from IEEE
  • Editorial announcement

    Publication Year: 1982, Page(s):1823 - 1825
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    Freely Available from IEEE
  • A tunable emerald laser

    Publication Year: 1982, Page(s):1829 - 1830
    Cited by:  Papers (33)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    Emerald is a new broadly wavelength-tunable vibronic laser material with stimulated emission in the red to infrared due to4T_{2} rightarrow4Atransitions of Cr3+. Emerald has gain from 12 050 cm-1to 14 000 cm-1with high gain from about 12 300 cm-1to 13 700 cm-1. An emerald laser oscillator has been ac... View full abstract»

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  • Iron diiodide photodissociation laser

    Publication Year: 1982, Page(s):1836 - 1838
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Lasing on 11 transitions of neutral iron (six of which have not been reported previously) is observed when iron diiodide (FeI2) is photodissociated at 193 nm (ArF laser). The lasing wavelengths span the visible spectrum, extending from 466 to 794 nm. Although the maximum laser energy output ofsim1 muJ (all lines) occurs at ∼825 K, stimulated emission is observed for tem... View full abstract»

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  • Analysis of diode laser properties

    Publication Year: 1982, Page(s):1918 - 1929
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1279 KB)

    An analytic model of diode lasers applicable to both the lasing and the nonlasing states is described. For these homogeneously broadened devices, spectral envelope widths for TE00and TM00modes are related to power in each modal family and are shown to depend critically on spontaneous emission coupling into the transverse modes. Thus, lasers with real-refractive index waveguid... View full abstract»

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  • Stimulated Raman scattering of XeF* laser radiation in H2

    Publication Year: 1982, Page(s):1929 - 1934
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (809 KB)

    Stimulated Raman scattering (SRS) experiments have been performed using an ∼2 J,sim0.4 mus pulsewidth XeF* laser as the pump and high-pressure molecular hydrogen as the Raman-active medium. The SRS conversion efficiency and spectral distribution have been characterized as functions of H2pressure and pump laser focal parameters. Energy conversion efficiencies of >60 p... View full abstract»

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  • Nondegenerate four-wave mixing in a homogeneously broadened two-level system with saturating pump waves

    Publication Year: 1982, Page(s):1947 - 1952
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (550 KB)

    The formulation of phase conjugation via nondegenerate four-wave mixing in a homogeneously broadened resonant medium is generalized to include saturating pump waves. An ultrahigh-Qoptical filter is predicted, showing both gain and a bandwidth less than the homogeneous linewidth of the atom. The dependence of the filter function on the ac Stark effect and on the use of asymmetric pump wa... View full abstract»

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  • Lasers, theory and applications

    Publication Year: 1982, Page(s): 1983
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (197 KB)

    First Page of the Article
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  • An introduction to optical waveguides

    Publication Year: 1982, Page(s): 1984
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1982, Page(s): 0
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    Freely Available from IEEE
  • On spontaneous emission into guided modes with curved wavefronts

    Publication Year: 1982, Page(s):1831 - 1832
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    The problem of spontaneous emission into guided modes with curved wavefronts is examined quantum mechanically. A classical result due to Petermann, which shows an increased emission rate relative to modes with planar phase fronts, is corroborated. View full abstract»

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  • Time-wavelength multiplexing of mode-locked external-cavity semiconductor lasers

    Publication Year: 1982, Page(s):1982 - 1983
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    A technique for obtaining multicolor operation of mode-locked lasers has been applied to an external-cavity semiconductor laser. The generation of two perfectly synchronized optical pulse trains of different wavelengths from such a laser is demonstrated. View full abstract»

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  • Fabrication of OH-free multimode fiber by vapor phase axial deposition

    Publication Year: 1982, Page(s):1883 - 1889
    Cited by:  Papers (9)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    An ultimately OH-free multimode optical fiber was fabricated by vapor phase axial deposition (VAD). Dehydration conditions were investigated using a newly designed electric furnace. To exclude the OH ion contamination during a fiber-drawing process, simultaneous deposition of core and cladding was carried out. The loss mechanism for the fabricated OH-free fiber was analyzed. Transmission loss for ... View full abstract»

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  • Improved performance of the microwave-pumped XeCl laser

    Publication Year: 1982, Page(s):1839 - 1840
    Cited by:  Papers (12)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    Significant improvements in pulse length (200 ns), output power (500 W), and repetition rate (400 Hz) of the microwave-pumped XeCl laser are reported. Efficient coupling of microwave power into Ne at pressures up to 17 atm has been demonstrated. View full abstract»

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  • Field-induced index profiles of multimode ion-exchanged strip waveguides

    Publication Year: 1982, Page(s):1877 - 1883
    Cited by:  Papers (61)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    The index profiles of multimode strip waveguides, which are fabricated and buried by field-assisted ion exchange processes in glasses, follow from the distribution of the applied drift field. A comparison between theoretical solutions and accurate measurements of the two-dimensional index profiles confirms that a precise calculation in terms of the technological parameters is possible. View full abstract»

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  • Gain saturation in phosphate laser glasses

    Publication Year: 1982, Page(s):1941 - 1946
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    Saturation of gain at 1053 nm was studied in seven Nd:doped phosphate glasses. Values of saturation fluence measured with 1.4-ns pulses were slightly less than those measured with 20-ns pulses. At both pulse lengths, saturation fluence increased with output fluence. For the seven glasses, the product of saturation fluence and gain cross section was constant to within ±6 percent. View full abstract»

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  • On the gain of the free electron laser (FEL) amplifier for a nonmonoenergetic beam

    Publication Year: 1982, Page(s):1957 - 1961
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    An accurate analysis of the gain and the electron beam evolution in a free electron laser (FEL) amplifier in terms of the laser field intensity and of the initial momentum distribution of the electron beam is carried out using the exact solution of the beam evolution equation. The effect of the energy spread both in the small-signal and in the saturation regime is investigated. View full abstract»

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  • Mode coupling effects in stress-applied single polarization fibers

    Publication Year: 1982, Page(s):1890 - 1899
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Mode coupling effects caused by waveguide imperfections and ambient fluctuations in the stress-applied single polarization fibers have been investigated. Several origins of mode coupling, such as: 1) core deformations, 2) deformation of stress-applying parts, 3) micro-bending, and 4) temperature fluctuations, have been treated. The mode coupling parameters between the orthogonally polarized HE View full abstract»

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  • Transmission bandwidth of the two-mode fiber link

    Publication Year: 1982, Page(s):1871 - 1876
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    The transmission bandwidth of the two-mode fiber link is investigated both experimentally and theoretically. It is shown that the experimental bandwidth as a function of wavelength is accurately predicted by using the individual fiber transfer functions and the mode conversion matrix at a splice. The bandwidth is maximized at the wavelength where the overall group delay time difference between the... View full abstract»

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  • Birefringence caused by thermal stress in elliptically deformed core optical fibers

    Publication Year: 1982, Page(s):1899 - 1909
    Cited by:  Papers (31)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (976 KB)

    Birefringence and polarization dispersion introduced by thermal stress in single-mode fibers with elliptical core are formulated here in terms of fiber structure parameters, thermal expansion coefficients, and thermoelastic constants. Thermal stress distribution and birefringence characteristics are estimated within first-order perturbation with respect to fiber core ellipticity. Normalized freque... View full abstract»

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  • Dispersion-induced instability in CW laser oscillators

    Publication Year: 1982, Page(s):1952 - 1957
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    A CW-pumped laser with a short photon cavity lifetime may show an unstable output in the form of spontaneous pulsations or noise. In this paper, a model is developed which reconciles previous studies of unstable behavior in homogeneously and inhomogeneously broadened lasers. Specific regions of instability are predicted for xenon lasers, and it is concluded that some degree of inhomogeneous broade... View full abstract»

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  • Phase conjugation in saturable amplifiers by degenerate frequency mixing

    Publication Year: 1982, Page(s):1934 - 1940
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB)

    Phase conjugation in staurable amplifiers by degenerate frequency mixing (DFM) is analyzed using numerical solutions for the appropriate equations. DFM reflectivities up to 104are predicted with pump intensities considerably less than the saturation intensity. The results are compared to those for saturable absorbers. Effects of spontaneous emission in the amplifiers are also considered... View full abstract»

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  • Theory of nonlinear optical absorption associated with free carriers in semiconductors

    Publication Year: 1982, Page(s):1841 - 1864
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2800 KB)

    We present calculations of the intensity dependence of the free-carrier absorption in semiconductors by high-intensity light with a wavelength near 10 μm. The paper is divided into two sections. The first section examines the nonlinear absorptive and dispersive properties associated with free-hole transitions in semiconductors, and the second section presents calculations of the nonlinear abs... View full abstract»

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  • Studies of organic molecules as saturable absorbers at 193 nm

    Publication Year: 1982, Page(s):1865 - 1871
    Cited by:  Papers (7)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    A systematic study of several classes of organic molecules in liquid solvents has been performed to survey candidates suitable as saturable absorbers at 193 nm. Materials with appropriate optical properties would serve the essential function of optical isolation in the implementation of high-energy picosecond ArF* laser systems. Twenty-three molecular systems have been found which exhibit appropri... View full abstract»

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  • High-power multiple-stripe injection lasers with channel guides

    Publication Year: 1982, Page(s):1910 - 1917
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    A new type of injection laser, the channel-guide (CG) structure, has been developed for use in multiple-stripe laser configurations. Leaky-mode operation of single-stripe CG lasers has been observed, and these devices produce "kink-free" outputs to pulsed powers of 180 mW (40 ns). Ten-stripe lasers fabricated using the channel-guide structure show strong leaky-mode coupling between stripes. Linear... 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
Prof. Hon Ki Tsang
Chinese University of Hong Kong