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Quantum Electronics, IEEE Journal of

Issue 2 • Date February 1966

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Displaying Results 1 - 8 of 8
  • [Front cover and table of contents]

    Publication Year: 1966 , Page(s): 0
    Save to Project icon | Request Permissions | PDF file iconPDF (182 KB)  
    Freely Available from IEEE
  • A transverse wave phototube for detection of microwave-frequency-modulated light

    Publication Year: 1966 , Page(s): 21 - 29
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1636 KB)  

    This paper describes the theoretical and experimental investigation of a novel means of detecting microwave-frequency-modulated light signals. The system consists of an optical dispersing element followed by a photocathode and transverse-field interaction circuit. The disperser causes the light beam to swing back and forth in accordance with the instantaneous optical frequency, resulting in the generation of a transversely modulated electron beam at the photocathode, which is then detected by the circuit. Results obtained with an experimental FM phototube system confirm the analyses of the optical and electron beam mechanisms for a small modulation index. Improved versions of the FM phototube are suggested, and it is shown that the approach may represent a superior means of directly detecting optical communications or reconnaissance signals as modulation techniques improve. In particular, the FM phototube can in principle utilize high-index modulation to increase the signal-to-shot noise ratio to a value only three dB below that of an ideal heterodyne detector, while inherently discriminating against background light. View full abstract»

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  • Analysis of the uniform rate equation model of laser dynamics

    Publication Year: 1966 , Page(s): 38 - 44
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1140 KB)  

    The spatially independent laser rate equation model is generalized to include multimode effects, and it is also shown that the same description of laser behavior as provided by the single-mode model results. Analytical expressions for the steady-state values of the variables in all modes are derived. It is shown that a singularity at the oscillation threshold exists in the steady-state equations which is responsible for the laser action. It is further demonstrated that the inverted population and the photon density in off-axis modes saturates above threshold, whereas the photon density in the primary mode increases linearly with pump rate above threshold. The exact time-dependent solutions are determined numerically, and it was found that the spiking separation and decay time could change by more than 50 percent of their values at the start of laser emission to the region of steady-state oscillation, even when the pump is assumed to be time independent. The linearized expressions for the spiking parameters are, therefore, inadequate-despite their frequent use-to describe phenomena appearing in the early portions of the spiking trace. A comparison with five experimental cases is also made. It was found that this model, with all modes included, provides no improvement over the single mode model, and cannot account for the irregular or undamped spiking or even the multimode oscillations observed experimentally. View full abstract»

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  • Effect of spatial dependence in the single-mode laser rate equations

    Publication Year: 1966 , Page(s): 47 - 49
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (412 KB)  

    First Page of the Article
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  • Correction to "Theory of FM laser oscillation"

    Publication Year: 1966 , Page(s): 49
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (136 KB)  

    First Page of the Article
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  • [Back cover]

    Publication Year: 1966 , Page(s): 0
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    Freely Available from IEEE
  • Polarization selection for reconstructed wavefronts and application to polarizing microholography

    Publication Year: 1966 , Page(s): 44 - 46
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (608 KB)  

    This article reports a phenomenon allowing the phase reference beam of the "two-beam, carrier-frequency" holography method of Leith and Upatnieks to be used as a polarization reference as well. A technique for utilizing this for selecting and recording a particular linearly polarized component of the image carrying beam is described and applied to a unique arrangement for microholography. The waves reconstructed by the technique are described mathematically and compared to waves passed by a polarizing microscope. Experimental confirmation of these observations is presented. View full abstract»

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  • Parametric interactions of optical modes

    Publication Year: 1966 , Page(s): 30 - 37
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1208 KB)  

    A formalism for treating interactions between optical modes in the presence of time-varying parameters is developed. The problems of parametric oscillation, frequency conversion, and internal laser modulation are treated, as well as a new class of interactions involving parametric modulation in the presence of negative losses. 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