Chaos suppression in a Nd:YVO4 laser by biharmonical pump modulation

Ming Dar Wei; Chih Chang Hsu; Han Hui Huang; Hsiao Hua Wu

doi:10.1364/OE.18.019977

Chaos suppression in a Nd:YVO₄ laser by biharmonical pump modulation

Ming Dar Wei, Chih Chang Hsu, Han Hui Huang, Hsiao Hua Wu

Department of Photonics

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

3 Citations (Scopus)

Abstract

This work demonstrates the suppression of chaos in a Nd:YVO₄ laser by biharmonical pump modulation (the first for chaos-inducing and the second for chaos-suppressing). The laser exhibits chaotic behavior when only the first signal is applied for pump modulation and its frequency is adjusted close to the relaxation-oscillation frequency. Adding the second signal with subhamonic and a specific phase difference to the first modulation signal will reshape the modulated waveform of the pump beam to suppress the aforementioned chaotic behavior. The initial phase of the second harmonic perturbation plays an important role in the suppression of chaos. This result is confirmed by numerical simulation.

Original language	English
Pages (from-to)	19977-19982
Number of pages	6
Journal	Optics Express
Volume	18
Issue number	19
DOIs	https://doi.org/10.1364/OE.18.019977
Publication status	Published - 2010 Sept 13

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.18.019977

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abstract = "This work demonstrates the suppression of chaos in a Nd:YVO4 laser by biharmonical pump modulation (the first for chaos-inducing and the second for chaos-suppressing). The laser exhibits chaotic behavior when only the first signal is applied for pump modulation and its frequency is adjusted close to the relaxation-oscillation frequency. Adding the second signal with subhamonic and a specific phase difference to the first modulation signal will reshape the modulated waveform of the pump beam to suppress the aforementioned chaotic behavior. The initial phase of the second harmonic perturbation plays an important role in the suppression of chaos. This result is confirmed by numerical simulation.",

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Y1 - 2010/9/13

N2 - This work demonstrates the suppression of chaos in a Nd:YVO4 laser by biharmonical pump modulation (the first for chaos-inducing and the second for chaos-suppressing). The laser exhibits chaotic behavior when only the first signal is applied for pump modulation and its frequency is adjusted close to the relaxation-oscillation frequency. Adding the second signal with subhamonic and a specific phase difference to the first modulation signal will reshape the modulated waveform of the pump beam to suppress the aforementioned chaotic behavior. The initial phase of the second harmonic perturbation plays an important role in the suppression of chaos. This result is confirmed by numerical simulation.

AB - This work demonstrates the suppression of chaos in a Nd:YVO4 laser by biharmonical pump modulation (the first for chaos-inducing and the second for chaos-suppressing). The laser exhibits chaotic behavior when only the first signal is applied for pump modulation and its frequency is adjusted close to the relaxation-oscillation frequency. Adding the second signal with subhamonic and a specific phase difference to the first modulation signal will reshape the modulated waveform of the pump beam to suppress the aforementioned chaotic behavior. The initial phase of the second harmonic perturbation plays an important role in the suppression of chaos. This result is confirmed by numerical simulation.

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Chaos suppression in a Nd:YVO₄ laser by biharmonical pump modulation

Abstract

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