Influence of the generated power, measurement bandwidth, and noise level on intensity statistics of a quasi-CW Raman fiber laser

Gorbunov, Oleg A., Sugavanam, Srikanth and Churkin, Dmitry V. (2014). Influence of the generated power, measurement bandwidth, and noise level on intensity statistics of a quasi-CW Raman fiber laser. IN: Nonlinear optics and its applications VIII; and quantum optics III. Eggleton, Benjamin J.; Gaeta, Alexander L.; Broderick, Neil G.R.; Sergienko, Alexander V.; Rauschenbeutel, Arno and Durt, Thomas (eds) SPIE proceedings . Bellingham, WA (US): SPIE.

Abstract

In the present paper we numerically study instrumental impact on statistical properties of quasi-CW Raman fiber laser using a simple model of multimode laser radiation. Effects, that have the most influence, are limited electrical bandwidth of measurement equipment and noise. To check this influence, we developed a simple model of the multimode quasi- CW generation with exponential statistics (i.e. uncorrelated modes). We found that the area near zero intensity in probability density function (PDF) is strongly affected by both factors, for example both lead to formation of a negative wing of intensity distribution. But far wing slope of PDF is not affected by noise and, for moderate mismatch between optical and electrical bandwidth, is only slightly affected by bandwidth limitation. The generation spectrum often becomes broader at higher power in experiments, so the spectral/electrical bandwidth mismatch factor increases over the power that can lead to artificial dependence of the PDF slope over the power. It was also found that both effects influence the ACF background level: noise impact decreases it, while limited bandwidth leads to its increase.

Publication DOI: https://doi.org/10.1117/12.2052296
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Additional Information: Copyright 2014. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Event Title: Nonlinear Optics and Its Applications VIII; and Quantum Optics III
Event Type: Other
Event Dates: 2014-04-14 - 2014-04-16
Uncontrolled Keywords: measurement equipment impact,statistical properties of multimode lasers,Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
Full Text Link: http://proceedi ... ticleid=1867805
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2014
Authors: Gorbunov, Oleg A.
Sugavanam, Srikanth
Churkin, Dmitry V.

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