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

Ken Chia Chang; Ming Dar Wei

doi:10.1109/JPHOT.2012.2235420

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

Ken Chia Chang, Ming Dar Wei

Department of Photonics

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

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 language	English
Article number	6387567
Journal	IEEE Photonics Journal
Volume	5
Issue number	1
DOIs	https://doi.org/10.1109/JPHOT.2012.2235420
Publication status	Published - 2013

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JPHOT.2012.2235420

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

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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AB - 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

Abstract

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