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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 19 — Sep. 13, 2010
  • pp: 19977–19982

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

Ming-Dar Wei, Chih-Chang Hsu, Han-Hui Huang, and Hsiao-Hua Wu  »View Author Affiliations


Optics Express, Vol. 18, Issue 19, pp. 19977-19982 (2010)
http://dx.doi.org/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.

© 2010 OSA

OCIS Codes
(140.1540) Lasers and laser optics : Chaos
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 1, 2010
Manuscript Accepted: September 1, 2010
Published: September 3, 2010

Citation
Ming-Dar Wei, Chih-Chang Hsu, Han-Hui Huang, and Hsiao-Hua Wu, "Chaos suppression in a Nd:YVO4 laser by biharmonical pump modulation," Opt. Express 18, 19977-19982 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-19-19977


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