First monolithically integrated ridge-waveguide InAs/InGaAs quantum-dot ring lasers are fabricated and characterized. Enhanced by a forward biased S-section waveguide, stable traveling-wave (unidirectional) operation with record suppression ratio of counterpropagating waves approaching 30 dB is demonstrated.


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    Title :

    Unidirectional operation of quantum-dot ring lasers


    Contributors:
    Hongjun Cao, (author) / Hui Deng, (author) / Hai Ling, (author) / Chiyu Liu, (author) / Smagley, V.A. (author) / Caldwell, R.B. (author) / Smolyakov, G.A. (author) / Gray, A.L. (author) / Lester, L.F. (author) / Eliseev, P.G. (author)


    Publication date :

    2005-01-01


    Size :

    1421642 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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