Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter: Optics Express

Pu Li; Qiang Cai; Jianguo Zhang; Bingjie Xu; Yiming Liu; Adonis Bogris; K. Alan Shore; Yuncai Wang

doi:10.1364/OE.27.017859

Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter: Optics Express

Pu Li
, Qiang Cai
, Jianguo Zhang
, Bingjie Xu
, Yiming Liu
, Adonis Bogris
, K. Alan Shore
, Yuncai Wang

School of Computer Science & Engineering

Taiyuan University of Technology
Institute of Southwestern Communication
University of West Attica
Guangdong University of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate experimentally that flat and broadband chaotic signals can be easily generated by combining a multi-mode laser diode subject to optical feedback with a band-pass filter. Measurements are made of the RF spectra of multi-mode and single-mode outputs from an external cavity Fabry-Perot (FP) semiconductor laser before and after the filtering procedure. In this way it is found that in the chaos regime the low-frequency energy of the single-mode output is enhanced by about 25 dB comparing with that of the multi-mode output. Moreover, the associated 3-dB chaos bandwidth can reach around 6 GHz for the single mode case. Numerical demonstrations show mode competition is the physical origin of the low-frequency enhancement in the single-mode chaotic outputs.

Original language	English
Pages (from-to)	17859-17867
Number of pages	9
Journal	Optics Express
Volume	27
Issue number	13
DOIs	https://doi.org/10.1364/OE.27.017859
Publication status	Published - 2019

Keywords

Diode lasers
Optical time domain reflectometry
Random number generation
Semiconductor lasers
Single mode lasers
Vertical cavity surface emitting lasers

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10.1364/OE.27.017859

https://opg.optica.org/oe/abstract.cfm?URI=oe-27-13-17859

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title = "Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter: Optics Express",

abstract = "We demonstrate experimentally that flat and broadband chaotic signals can be easily generated by combining a multi-mode laser diode subject to optical feedback with a band-pass filter. Measurements are made of the RF spectra of multi-mode and single-mode outputs from an external cavity Fabry-Perot (FP) semiconductor laser before and after the filtering procedure. In this way it is found that in the chaos regime the low-frequency energy of the single-mode output is enhanced by about 25 dB comparing with that of the multi-mode output. Moreover, the associated 3-dB chaos bandwidth can reach around 6 GHz for the single mode case. Numerical demonstrations show mode competition is the physical origin of the low-frequency enhancement in the single-mode chaotic outputs.",

keywords = "Diode lasers, Optical time domain reflectometry, Random number generation, Semiconductor lasers, Single mode lasers, Vertical cavity surface emitting lasers",

author = "Pu Li and Qiang Cai and Jianguo Zhang and Bingjie Xu and Yiming Liu and Adonis Bogris and Shore, \{K. Alan\} and Yuncai Wang",

year = "2019",

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pages = "17859--17867",

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T1 - Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter

T2 - Optics Express

AU - Li, Pu

AU - Cai, Qiang

AU - Zhang, Jianguo

AU - Xu, Bingjie

AU - Liu, Yiming

AU - Bogris, Adonis

AU - Shore, K. Alan

AU - Wang, Yuncai

PY - 2019

Y1 - 2019

N2 - We demonstrate experimentally that flat and broadband chaotic signals can be easily generated by combining a multi-mode laser diode subject to optical feedback with a band-pass filter. Measurements are made of the RF spectra of multi-mode and single-mode outputs from an external cavity Fabry-Perot (FP) semiconductor laser before and after the filtering procedure. In this way it is found that in the chaos regime the low-frequency energy of the single-mode output is enhanced by about 25 dB comparing with that of the multi-mode output. Moreover, the associated 3-dB chaos bandwidth can reach around 6 GHz for the single mode case. Numerical demonstrations show mode competition is the physical origin of the low-frequency enhancement in the single-mode chaotic outputs.

AB - We demonstrate experimentally that flat and broadband chaotic signals can be easily generated by combining a multi-mode laser diode subject to optical feedback with a band-pass filter. Measurements are made of the RF spectra of multi-mode and single-mode outputs from an external cavity Fabry-Perot (FP) semiconductor laser before and after the filtering procedure. In this way it is found that in the chaos regime the low-frequency energy of the single-mode output is enhanced by about 25 dB comparing with that of the multi-mode output. Moreover, the associated 3-dB chaos bandwidth can reach around 6 GHz for the single mode case. Numerical demonstrations show mode competition is the physical origin of the low-frequency enhancement in the single-mode chaotic outputs.

KW - Diode lasers

KW - Optical time domain reflectometry

KW - Random number generation

KW - Semiconductor lasers

KW - Single mode lasers

KW - Vertical cavity surface emitting lasers

U2 - 10.1364/OE.27.017859

DO - 10.1364/OE.27.017859

M3 - Article

VL - 27

SP - 17859

EP - 17867

JO - Optics Express

JF - Optics Express

IS - 13

ER -

Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter: Optics Express

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