Intensity noise properties of quantum cascade lasers | Zendy

Tobias Gensty | Zendy; Wolfgang Els��er | Zendy; Christian Mann | Zendy

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Intensity noise properties of quantum cascade lasers

Author(s) -

Tobias Gensty,

Wolfgang Els��er,

Christian Mann

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.002032

Subject(s) - relative intensity noise , laser , optics , cascade , semiconductor laser theory , physics , quantum noise , noise (video) , intensity (physics) , quantum dot laser , optoelectronics , materials science , quantum , quantum mechanics , computer science , chemistry , chromatography , artificial intelligence , image (mathematics)

We present investigations of the the relative intensity noise (RIN) of a quantum cascade laser (QC) laser in continuous wave operation. We analyze the intensity noise properties in terms of the relative intensity noise (RIN). In contrast to conventional interband semiconductor diode lasers we obtain a different scaling behavior of RIN with increasing optical output power for QC lasers. From a semiclassical noise model we find that this result is due to the cascaded active regions each incorporating three laser levels, and is therefore a particular feature of QC lasers.

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