41–60 von 1,560 Ergebnissen
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    The effect of temperature on the efficiency of InGaAs and InGaAsN quantum well laser structures

    Palmer, D.J. / Smowton, P.M. / Blood, P. et al. | IEEE | 2005
    We have measured gain and recombination in an InGaAs and an InGaAsN quantum well structure as a function of temperature. We find that the ...

      The Effect of Temperature on the Efficiency of InGaAs and InGaAsN Quantum Well Laser Structures

      Palmer, D. | British Library Conference Proceedings | 2005
      Schlagwörter: Lasers , Electro-optics , CLEO

    Surface emitting terahertz quantum cascade lasers

    Schubert, M.F. / Rana, F. | IEEE | 2005
    Design and simulation results for surface-emitting terahertz quantum cascade lasers using phase-shifted second-order gratings are presented ...

    Single mode quantum cascade lasers

    Pflugl, C. / Golka, S. / Austerer, M. et al. | IEEE | 2005
    Quantum cascade lasers (QCLs) are based on intersubband transitions. Selection rules for transitions in quantum wells allow gain only for ...

    Extreme energy pulsed fiber lasers

    Chen, M.-Y. / Chang, Y.-C. / Mamidipudi, P. et al. | IEEE | 2005

    Electronically switched silicon Raman lasers

    Boyraz, O. / Jalall, B. | IEEE | 2005
    best of our knowledge, this is the first such demonstration. In contrast to traditional Raman lasers, this laser can be directly modulated to ...

    Coherent combining of fiber lasers

    Minden, M. / Bruesselbach, H. / Rogers, J. et al. | IEEE | 2005

    Optical fibers for high power lasers and amplifiers

    Nielsen, M.D. / Hansen, K.P. / Broeng, J. et al. | IEEE | 2005

    Unidirectional operation of quantum-dot ring lasers

    Hongjun Cao, / Hui Deng, / Hai Ling, et al. | IEEE | 2005
    First monolithically integrated ridge-waveguide InAs/InGaAs quantum-dot ring lasers are fabricated and characterized. Enhanced by a forward ...

    Coherent addition of Q-switched fiber lasers

    Sabourdy, D. / Desfarges-Berthelemot, A. / Kermene, V. et al. | IEEE | 2005
    We report on the pulse peak power rising of an actively Q-switched erbium doped fiber laser by using two coupled cavities with amplifying ...

    Characteristics of dilute-nitride quantum well lasers

    Mawst, L.J. / Yeh, J.-Y. / Tansu, N. | IEEE | 2005
    sensitivity compared with InP-based structures. Studies reveal the impact of nitrogen on the gain, carrier confinement, and laser characteristics. ...

    Surface emission from MBE and MOVPE grown quantum cascade lasers

    Schrenk, W. / Pflugl, C. / Austerer, M. et al. | IEEE | 2005

    FM mode-locking in monolithic semiconductor lasers

    Thompson, M.G. / Williams, K.A. / Penty, R.V. et al. | IEEE | 2005
    FM mode-locking in monolithic semiconductor lasers is investigated for the first time, using a travelling-wave laser model. The effects of ...

    Q-switched short cavity fiber lasers: theory and experiment

    Duchowicz, R. / Perez-Millan, P. / Cruz, J.L. et al. | IEEE | 2005

    Dominant causes of linewidth in DFB fiber lasers

    Horak, P. / Voo, N.Y. / Ibsen, M. et al. | IEEE | 2005
    We present experimental arid theoretical results on the linewidth of an Er-Yb doped DFB fiber laser. Recently observed dependencies on pump ...

    MOVPE grown quantum cascade lasers: single mode performance and structural quality

    Green, R.P. / Wilson, L.R. / Revin, D.G. et al. | IEEE | 2005

    An analytic technique for investigating mode-locked lasers

    Usechak, N.G. / Agrawal, G.P. | IEEE | 2005
    We present an analytic theory capable of predicting pulse parameters in mode-locked lasers in the presence of dispersion and nonlinearity ...

    Anticompetition of laser modes in quantum dot lasers

    Yi-Shin Su, / Ching-Fuh Lin, | IEEE | 2005
    Laser-mode anticompetition is observed in a quantum-dot laser. The laser is operated at 1168.5 nm and 1262.3 nm wavelength simultaneously ...

    Terahertz bound-to-continuum quantum-cascade lasers based on optical-phonon scattering extraction

    Scalari, G. / Hoyler, N. / Giovannini, M. et al. | IEEE | 2005
    using both single plasmon and double metal waveguides. Laser emission takes place at an energy of 14.9 meV just after threshold, in good ...

    (GaIn)(NAsSb): the challenges and successes for long wavelength lasers

    Harris, J.S. | IEEE | 2005
    on the successes to date on long wavelength lasers and integrated photonic crystal structures as well as the remaining challenges to achieve ...