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IEEE Journal of Quantum Electronics

Issue 2 • February 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
  • Analysis of giant pulse amplification in Nd3+doped glass

    Publication Year: 1971, Page(s):53 - 59
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    In a study of the mechanism of giant pulse amplification in Nd3+doped glass, the following measurements have been made: 1) energy extracted from an amplifier as a function of the input energy, 2) relative fluorescence intensity at 0.9μ in a slab, pumped by the emission of a ruby laser, and 3) gain variation after the transit of an intense, short, rectangular pulse. The experimental... View full abstract»

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  • Mechanism of passiveQswitching in CO2lasers

    Publication Year: 1971, Page(s):73 - 82
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1068 KB)

    PassiveQswitching of a CO2laser by saturable absorbers is analyzed in terms of a four-state kinetic model previously used to interpret infrared saturations double resonance, and pulse transmission. Good agreement is found between the predictions of this model and the experimental dependence of such variables as pulsewidth, repetition frequency, and peak power on the presence ... View full abstract»

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  • Infrared pulse transmission in SF6-He mixtures

    Publication Year: 1971, Page(s):82 - 85
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (431 KB)

    The transmission ofQ-switched CO2laser pulses through SF6-He mixtures is studied experimentally and compared with predictions generated by computer calculations based on a four-state model for SF6. The results show that for saturating fields the factor determining the rate of absorption is the rotational energy transfer process that feeds the levels inte... View full abstract»

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  • Wavelength tuning of the stimulated emission from GaAs and CdSe electron-beam-pumped lasers

    Publication Year: 1971, Page(s):88 - 93
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (742 KB)

    The wavelength at which the stimulated output from a number of electron-beam-pumped semiconductor lasers peaks is a function of the time after the start of the pumping pulse. In general, the output intensity reaches a maximum at short wavelengths considerably before it peaks at the longest. Detailed observations of the wavelength shifts of the peak output as a function of both time and pumping cur... View full abstract»

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  • Pulsed discharge initiated chemical lasers - Part II: HF laser emission from NF3and N2F4systems

    Publication Year: 1971, Page(s):98 - 101
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (385 KB)

    A transverse, multiple-arc pulsed discharge has produced laser emission in NF3and N2F4mixed with H2, CH4, C2H6, HCl, HBr, and natural gas.P_{10}, P_{21}, P_{32}, and P43HF transitions were observed. The peak powers measured ranged from ∼8.5 to 25 kW with typical pulsewidths ofsim0.3 mu View full abstract»

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  • CO laser emission below 5.0 µ

    Publication Year: 1971, Page(s): 101
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (149 KB)

    Laser emission from a CW He-air-CO laser has been observed at 4.991, 4.937, 4.927, 4.884, and 4.874 μ. The emissions have been identified to result from transitions as low asupsilon= 3 : 2. View full abstract»

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  • CW laser oscillation at 5433 Å in neon

    Publication Year: 1971, Page(s): 102
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (145 KB)

    CW laser oscillation at 5433 Å has been observed in the He-Ne laser. The transition is from the3S_{2}to2p_{10}level and is the 9th in this group of nine allowed transitions to exhibit laser oscillation. View full abstract»

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  • [Back cover]

    Publication Year: 1971, Page(s): 0
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    Freely Available from IEEE
  • New N2-pumped ultraviolet dye lasers

    Publication Year: 1971, Page(s): 102
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    Laser action in BBD and isopropyl-PBD pumped by the N2laser has been observed. The energy outputs, optimum concentrations, and wavelength ranges for several ultraviolet-lasing dyes were also determined. View full abstract»

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  • Self-induced thermal distortion in the near field for a laser beam in a moving medium

    Publication Year: 1971, Page(s):63 - 73
    Cited by:  Papers (54)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1440 KB)

    A theoretical model is developed that predicts the steady-state self-induced thermal distortion of a laser beam in an absorbing medium flowing transverse to the direction of propagation. A general perturbation solution is obtained that is appropriate when the thermal distortion effects are small. A computer iteration of this solution is performed to obtain results that are applicable over an incre... View full abstract»

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  • Enhanced optical third-harmonic generation by coupled nonlinear absorption

    Publication Year: 1971, Page(s):86 - 88
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    Combined nonlinear absorption and third-harmonic generation has resulted in enhanced harmonic output in a liquid-dye medium phase matched by anomalous dispersion. The measured absorption is employed in calculating the third-harmonic power. View full abstract»

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  • Self-focusing of 10.6-µm radiation in liquid CS2

    Publication Year: 1971, Page(s):97 - 98
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Self-focusing of 9-kW CO2laser pulses was observed in liquid CS2. The calculated coefficient of nonlinear index of refraction (n2) from experimental data is approximately 10-17MKS, which is nearly three orders of magnitude larger than the nonlinear index coefficient observed for visible radiation. View full abstract»

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  • CO2laser mode locking produced by sinusoidal cavity-length modulation

    Publication Year: 1971, Page(s):95 - 97
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    Mode locking of a CO2laser through the use of cavity-length modulation is reported. A cavity end reflector was sinusoidally modulated along the cavity axis at a frequency equal to the quiescent axial mode interval. Phase-locked pulsing occurred at a rate equal to or twice the axial mode interval. View full abstract»

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  • Operation of a circularly polarized ring laser

    Publication Year: 1971, Page(s):59 - 62
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    Although there has been a large amount of experimental work published on the operation of the ring laser, nearly all of it was concerned with lasers operating in linearly polarized modes. In this paper the operation of a ring laser using the 1.153-μm wavelength transition of the He-Ne mixture in a cavity with no polarization constraint is reported. It was found that the two traveling waves op... View full abstract»

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  • Picosecond structure in self-pulsing GaAs injection lasers

    Publication Year: 1971, Page(s):94 - 95
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Partial mode locking has been observed in self-pulsing GaAs injection lasers using an optical correlation technique. The lasers are operated at room temperature and the self-pulsing occurs near the end of the injection current pulse. The pulsewidths are about 4 ps, which are the shortest observed in an injection laser. 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