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IEEE Journal of Quantum Electronics

Issue 4 • April 1976

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

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • Announcement

    Publication Year: 1976, Page(s): 213
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    Freely Available from IEEE
  • Theory of spin-flip laser modes - I: Threshold modulation and tuning behavior

    Publication Year: 1976, Page(s):218 - 225
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (874 KB)

    Theoretical calculations of threshold intensity and output frequency, as functions of magnetic field, are presented for the InSb spin-flip Raman laser (SFRL). These are based on a numerical solution of Maxwell's equations for the case of a pump beam of Gaussian profile, and various analytical results for more approximate models. The results are used to discuss nonlinear tuning characteristics, mod... View full abstract»

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  • Rotation of polarization axis of injection lasers with viewing direction

    Publication Year: 1976, Page(s):225 - 232
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (821 KB)

    It is shown theoretically that in lasers with box modes and polarization determined by facet reflectivity, the axis of polarization rotates with viewing direction. For thin double-heterojunction (DHJ) cavities, the angle ρ between the junction plane and theEfield of the radiation depends on the angles θ and φ in the junction plane and transverse to it,rho approx 10^{... View full abstract»

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  • Strip-loaded diffused optical waveguides

    Publication Year: 1976, Page(s):232 - 236
    Cited by:  Papers (20)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (518 KB)

    A strip-loaded diffused optical waveguide consists of a one-dimensional diffused guide with a narrow loading strip of dielectric deposited on the surface. Two-dimensional modes can exist in the diffused material, confined in depth by the diffusion and in width by the loading strip. The propagation constants of these two-dimensional modes are calculated. The requirements for the index of refraction... View full abstract»

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  • Waveguide CO2laser gain: Dependence on gas kinetic and discharge properties

    Publication Year: 1976, Page(s):237 - 244
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (747 KB)

    Using a simple rate equation approach we examine the gas kinetic and discharge properties of waveguide CO2lasers. We calculate the dependence of the population inversion and laser small-signal gain on gas pressure, gas mixture, pumping rate (discharge current), tube bore diameter, and wall temperature. The results indicate, for example, that at a pressure of 50 torr and a tube-bore diam... View full abstract»

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  • Measurement of optical gain in CO gas excited only by fission fragments

    Publication Year: 1976, Page(s):244 - 253
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1206 KB)

    Gain has been measured in high-density (∼ 0.5 amagat) CO gas, which was cooled to 77 K and excited with an intense burst of fission fragments induced by a fast-burst reactor (Sandia SPR II). Peak-gain coefficientslsim 0.5percent/cm were measured in pure CO over the wavelength range5.1-5.33 mu, for fission-fragment energy depositions ∼ 200 J/l. Interpreting the mea... View full abstract»

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  • A stabilizer for cavity-dumped Nd:YAG

    Publication Year: 1976, Page(s):256 - 257
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    Relaxation oscillations induced by cavity dumping in a Nd:YAG laser have been suppressed by an intracavity frequency doubler, thereby increasing the useful output of this laser for communications purposes by an order of magnitude. The additional loss induced by frequency doubling was negligible even at high damping constants. View full abstract»

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  • Oscillator strengths of Nd3+in NdxLa1-xP5O14and concentration quenching in stoichiometric rare-earth laser materials

    Publication Year: 1976, Page(s):258 - 259
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 KB)

    Oscillator strengths of Nd3+in NdxLa1-xP5O14for0.01 leq x leq 1are shown to be constant. Consequently, through the whole concentration range Nd3+behaves essentially as one center with respect to transition probabilities. This situation is discussed in relation to concentration quenching. View full abstract»

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  • Single-mode operation of a repetitively pulsed dye laser

    Publication Year: 1976, Page(s):259 - 260
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (275 KB)

    A Hansch-type dye laser pumped by a xenon ion laser achieves single-mode operation with a frequency jitter of 32 MHz and a peak power of 2 kW. View full abstract»

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  • New far-infrared laser lines in N15H3

    Publication Year: 1976, Page(s):260 - 261
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (229 KB)

    Several isotopes of NH3have been studied as laser candidates, including ND2H, NH2D, ND3, and N15H3. Lasing was observed in N15H3at 15.08 and 15.91 μ. Tentative assignments of transitions to the2nu_{2} rightarrow nu_{2}vibrational levels have been made. Enhanced energy output was observed in N View full abstract»

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  • Higher order harmonics of CO2and N2O laser difference frequencies

    Publication Year: 1976, Page(s): 261
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (127 KB)

    The generation of the fourth and fifth harmonics of the difference frequency between two 28-THz laser lines, by a tungsten-nickel diode, was observed. View full abstract»

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  • [Back cover]

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • Optical design of a frequency-doubled Nd:YAG laser

    Publication Year: 1976, Page(s):254 - 256
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    The design and laboratory manipulation of the optical resonator of a frequency-doubled Nd:YAG laser has been aided by a unique computer program written for the desk-top HP 9820 calculator-plotter. The program is a self-consistent treatment of Gaussian mode propagation and includes the thermooptical effects of intracavity elements. The optimization of the frequency-doubled laser is greatly aided by... View full abstract»

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  • Stabilization of oscillating modes in a LiNdP4O12laser

    Publication Year: 1976, Page(s):214 - 217
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    Suppression of mode competition in a LiNdP4O12(LNP) laser is reported. The stabilization of the oscillating modes was achieved with a quartz quarter-wave plate placed within an optical resonator without any external modulation. View full abstract»

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  • Operation of TEA CO2lasers with rough surface electrodes

    Publication Year: 1976, Page(s): 257
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    In contrast with the normally accepted concepts in the construction of transversely excited atmospheric (TEA) CO2lasers it is found that homogeneously roughened electrodes perform better then polished ones. 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