Chaos suppression and phase locking in an Nd:YVO4 laser by reshaping pump modulation with dual waveforms

Ken Chia Chang, Ming-Dar Wei

Research output: Contribution to journalArticle

Abstract

This paper demonstrated the suppression of chaos in an Nd:YVO4 laser by reshaping the pump modulation with dual waveforms. When the first sinusoidal modulation induced chaos, the second modulated signal reshaped the modulated profile to suppress the chaos. A chaos-suppressed route associated with double phase locking was observed as the modulation depth of the second modulation increased; the first phase locking accompanied the subharmonic oscillation of the output intensity, and the second phase locking regenerated the chaos. Varying the waveforms of the second modulation to be square, triangle, and sinusoidal reshapes the modulated profile to change the suppression region; therefore, the shape can be used as a parameter to control the dynamics. Numerical simulations were confirmed by the experimental results.

Original languageEnglish
Article number6387567
JournalIEEE Photonics Journal
Volume5
Issue number1
DOIs
Publication statusPublished - 2013 Feb 18

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Chaos theory
locking
chaos
waveforms
Modulation
retarding
Pumps
pumps
modulation
Lasers
lasers
profiles
triangles
routes
oscillations
output
Computer simulation
simulation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper demonstrated the suppression of chaos in an Nd:YVO4 laser by reshaping the pump modulation with dual waveforms. When the first sinusoidal modulation induced chaos, the second modulated signal reshaped the modulated profile to suppress the chaos. A chaos-suppressed route associated with double phase locking was observed as the modulation depth of the second modulation increased; the first phase locking accompanied the subharmonic oscillation of the output intensity, and the second phase locking regenerated the chaos. Varying the waveforms of the second modulation to be square, triangle, and sinusoidal reshapes the modulated profile to change the suppression region; therefore, the shape can be used as a parameter to control the dynamics. Numerical simulations were confirmed by the experimental results.",
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Chaos suppression and phase locking in an Nd:YVO4 laser by reshaping pump modulation with dual waveforms. / Chang, Ken Chia; Wei, Ming-Dar.

In: IEEE Photonics Journal, Vol. 5, No. 1, 6387567, 18.02.2013.

Research output: Contribution to journalArticle

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