Changes in normalized permutation entropy during non-coherent pulsepulse interaction in the laser cavity

Little, D. J., Kbashi, H., Kolpakov, S. A., Kane, D. M. and Sergeyev, S. V. (2017). Changes in normalized permutation entropy during non-coherent pulsepulse interaction in the laser cavity. IN: European Quantum Electronics Conference, EQEC 2017. Optical Society of America.

Abstract

Summary form only given. Statistically extreme events, that is to say, the events which have L-shaped probability distribution function (PDF, or in other words L-statistics) and, in particular, the rogue wave (RW) events, constitute a special family of natural phenomena. Curiously, this kind of events is more common than it is believed. It was observed that the behavior of the systems which obey L-shaped statistics is clustered. Periods of high predictability and low volatility are followed by periods of drastic changes and high volatility, for example, RWs [1], earthquakes, epileptic seizures etc. Permutation entropy (PE) is an indicator of dynamical predictability of the system [2, 3] which allows quantization of the predictability or volatility. We report an investigation of using it to characterize the uncertainty period which was observed during pulse-pulse interaction in a long ring laser resonator without a saturable absorber. These resonators, in particular, the resonator built using Er3+ doped fiber (Fig.1), have polarization dependent instability near the lasing threshold [4] which leads to the generation of pulses propagating with different speed, either randomly or regularly. Using this property, an investigator can observe the mechanism of the pulse-pulse interaction in detail

Publication DOI: https://doi.org/10.1109/CLEOE-EQEC.2017.8087580
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Additional Information: ©2017 Optical Society of America. 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 modifications of the content of this paper are prohibited.
Event Title: European Quantum Electronics Conference, EQEC 2017
Event Type: Other
Event Dates: 2017-06-25 - 2017-06-29
Uncontrolled Keywords: Electronic, Optical and Magnetic Materials,Mechanics of Materials
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2017-10-30
Authors: Little, D. J.
Kbashi, H.
Kolpakov, S. A. ( 0000-0001-6947-8289)
Kane, D. M.
Sergeyev, S. V. ( 0000-0002-1515-5019)

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