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Quantum-limited linewidth of a chaotic laser cavity .

Patra, M. and Schomerus, H. and Beenakker, C. W. J. (2000) Quantum-limited linewidth of a chaotic laser cavity . Physical Review A, 61. 023810.

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    A random-matrix theory is presented for the linewidth of a laser cavity in which the radiation is scattered chaotically. The linewidth is enhanced above the Schawlow-Townes value by the Petermann factor K, due to the nonorthogonality of the cavity modes. The factor K is expressed in terms of a non-Hermitian random matrix, and its distribution is calculated exactly for the case in which the cavity is coupled to the outside via a small opening. The average of K is found to depend nonanalytically on the area of the opening, and to greatly exceed the most probable value.

    Item Type: Article
    Journal or Publication Title: Physical Review A
    Departments: Faculty of Science and Technology > Physics
    ID Code: 704
    Deposited By: Dr Henning Schomerus
    Deposited On: 31 Oct 2007
    Refereed?: Yes
    Published?: Published
    Last Modified: 07 Jan 2015 16:04
    Identification Number:

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