Excess noise for coherent radiation propagating through amplifying random media

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dc.creatorPatra, M.
dc.creatorBeenakker, C. W. J.
dc.date1999-01-28
dc.date.accessioned2026-07-07T06:16:08Z
dc.date.available2026-07-07T06:16:08Z
dc.descriptionA general theory is presented for the photodetection statistics of coherent radiation that has been amplified by a disordered medium. The beating of the coherent radiation with the spontaneous emission increases the noise above the shot-noise level. The excess noise is expressed in terms of the transmission and reflection matrices of the medium, and evaluated using the methods of random-matrix theory. Inter-mode scattering between $N$ propagating modes increases the noise figure by up to a factor of $N$, as one approaches the laser threshold. Results are contrasted with those for an absorbing medium.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/9901075
dc.identifierhttp://arxiv.org/abs/quant-ph/9901075
dc.identifierPhys.Rev. A60 (1999) 4059
dc.identifierdoi:10.1103/PhysRevA.60.4059
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93963
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.titleExcess noise for coherent radiation propagating through amplifying random media
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