Phys. Rev. A 74, 053808 (2006) [6 pages]

Intrinsic intensity fluctuations in random lasers

Abstract

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Karen L. van der Molen^1,*, Allard P. Mosk¹, and Ad Lagendijk²
¹Complex Photonic Systems, MESA⁺ Research, Institute and Department of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
²FOM Institute for Atomic and Molecular Physics (AMOLF), Kruislaan 407, 1098 SJ Amsterdam, The Netherlands

Received 16 May 2006; published 15 November 2006

We present a quantitative experimental and theoretical study of intensity fluctuations in the emitted light of a random laser that has different realizations of disorder for every pump pulse. A model that clarifies these intrinsic fluctuations is developed. We describe the output versus input power graphs of the random laser with an effective spontaneous emission factor (β factor).

URL:

http://link.aps.org/doi/10.1103/PhysRevA.74.053808

DOI:

10.1103/PhysRevA.74.053808

PACS:

42.55.Zz, 42.25.Dd

^*Electronic address: k.l.vandermolen@utwente.nl

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Phys. Rev. A 74, 053808 (2006) [6 pages]

Intrinsic intensity fluctuations in random lasers