Exact photocount statistics : lasers near threshold
Autor(a) principal: | |
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Data de Publicação: | 1973 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/27472 |
Resumo: | A previously constructed laser model with quantum (noncommuting) noise sources was shown to lead near threshold to a quantum rotating-wave Van der Pol oscillator. A full dynamical correspondence between quantum and classical random processes allows one to compute the average of any time-ordered, normal-ordered operator function by averaging the associated function of classical random variables. Numerical calculations for the associated classical Van der Pol oscillator of the steady-state distribution, the total intensity fluctuations, and the linewidth versus operating point were amply confirmed experimentally. Measurements (and calculations) of higher than two-time correlations were sparse and contradictory. Photocount distributions, at times short compared to the intensity correlation time, confirm only the steady state of the laser. Pliotocount distributions at intermediate and longer times are difficut to compute because they involve multitime correlations of high (∞) order. By providing an exact solution for photocount distributions and their moments for all times, we expected to stimulate measurements near threshold which would provide an adequate test of the Van der Pol laser model. Comparison of the results reported here with recent photocount experiments of Meltzer, Davis, and Mandel and of Jakeman, Oliver, and Pike provides gratifying agreement and confirmation of our statistical understanding of laser fluctuations near threshold. |
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Lax, MelvinZwanziger, Marcus Guenter2011-01-22T05:59:05Z19730556-2791http://hdl.handle.net/10183/27472000147891A previously constructed laser model with quantum (noncommuting) noise sources was shown to lead near threshold to a quantum rotating-wave Van der Pol oscillator. A full dynamical correspondence between quantum and classical random processes allows one to compute the average of any time-ordered, normal-ordered operator function by averaging the associated function of classical random variables. Numerical calculations for the associated classical Van der Pol oscillator of the steady-state distribution, the total intensity fluctuations, and the linewidth versus operating point were amply confirmed experimentally. Measurements (and calculations) of higher than two-time correlations were sparse and contradictory. Photocount distributions, at times short compared to the intensity correlation time, confirm only the steady state of the laser. Pliotocount distributions at intermediate and longer times are difficut to compute because they involve multitime correlations of high (∞) order. By providing an exact solution for photocount distributions and their moments for all times, we expected to stimulate measurements near threshold which would provide an adequate test of the Van der Pol laser model. Comparison of the results reported here with recent photocount experiments of Meltzer, Davis, and Mandel and of Jakeman, Oliver, and Pike provides gratifying agreement and confirmation of our statistical understanding of laser fluctuations near threshold.application/pdfengPhysical review. A, General physics. New York. Vol. 7, no. 1/2 (Jan./Feb. 1973), p. 750-771Áreas clássicas de fenomenologia e suas aplicaçõesLasers : Estatistica : FotonsFotodetectoresExact photocount statistics : lasers near thresholdEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000147891.pdf000147891.pdfTexto completo (inglês)application/pdf1237521http://www.lume.ufrgs.br/bitstream/10183/27472/1/000147891.pdfb9a7d69014a33aeed1a760127aa058f2MD51TEXT000147891.pdf.txt000147891.pdf.txtExtracted Texttext/plain82127http://www.lume.ufrgs.br/bitstream/10183/27472/2/000147891.pdf.txt70f12d8464227c220e772e1a83e808e8MD52THUMBNAIL000147891.pdf.jpg000147891.pdf.jpgGenerated Thumbnailimage/jpeg1854http://www.lume.ufrgs.br/bitstream/10183/27472/3/000147891.pdf.jpg324b224518f6dc3a08a19e9526f2d605MD5310183/274722021-06-26 04:38:43.816939oai:www.lume.ufrgs.br:10183/27472Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-06-26T07:38:43Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Exact photocount statistics : lasers near threshold |
title |
Exact photocount statistics : lasers near threshold |
spellingShingle |
Exact photocount statistics : lasers near threshold Lax, Melvin Áreas clássicas de fenomenologia e suas aplicações Lasers : Estatistica : Fotons Fotodetectores |
title_short |
Exact photocount statistics : lasers near threshold |
title_full |
Exact photocount statistics : lasers near threshold |
title_fullStr |
Exact photocount statistics : lasers near threshold |
title_full_unstemmed |
Exact photocount statistics : lasers near threshold |
title_sort |
Exact photocount statistics : lasers near threshold |
author |
Lax, Melvin |
author_facet |
Lax, Melvin Zwanziger, Marcus Guenter |
author_role |
author |
author2 |
Zwanziger, Marcus Guenter |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Lax, Melvin Zwanziger, Marcus Guenter |
dc.subject.por.fl_str_mv |
Áreas clássicas de fenomenologia e suas aplicações Lasers : Estatistica : Fotons Fotodetectores |
topic |
Áreas clássicas de fenomenologia e suas aplicações Lasers : Estatistica : Fotons Fotodetectores |
description |
A previously constructed laser model with quantum (noncommuting) noise sources was shown to lead near threshold to a quantum rotating-wave Van der Pol oscillator. A full dynamical correspondence between quantum and classical random processes allows one to compute the average of any time-ordered, normal-ordered operator function by averaging the associated function of classical random variables. Numerical calculations for the associated classical Van der Pol oscillator of the steady-state distribution, the total intensity fluctuations, and the linewidth versus operating point were amply confirmed experimentally. Measurements (and calculations) of higher than two-time correlations were sparse and contradictory. Photocount distributions, at times short compared to the intensity correlation time, confirm only the steady state of the laser. Pliotocount distributions at intermediate and longer times are difficut to compute because they involve multitime correlations of high (∞) order. By providing an exact solution for photocount distributions and their moments for all times, we expected to stimulate measurements near threshold which would provide an adequate test of the Van der Pol laser model. Comparison of the results reported here with recent photocount experiments of Meltzer, Davis, and Mandel and of Jakeman, Oliver, and Pike provides gratifying agreement and confirmation of our statistical understanding of laser fluctuations near threshold. |
publishDate |
1973 |
dc.date.issued.fl_str_mv |
1973 |
dc.date.accessioned.fl_str_mv |
2011-01-22T05:59:05Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
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format |
article |
status_str |
publishedVersion |
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http://hdl.handle.net/10183/27472 |
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0556-2791 |
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000147891 |
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http://hdl.handle.net/10183/27472 |
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dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. A, General physics. New York. Vol. 7, no. 1/2 (Jan./Feb. 1973), p. 750-771 |
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openAccess |
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