OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 27, Iss. 19 — Oct. 1, 2002
  • pp: 1696–1698

Self-induced high-speed modulation in microchip solid-state lasers with asymmetric end pumping

Kenju Otsuka, Tsong-Shin Lim, Jing-Yuan Ko, and Hironori Makino  »View Author Affiliations

Optics Letters, Vol. 27, Issue 19, pp. 1696-1698 (2002)

View Full Text Article

Acrobat PDF (124 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We applied laser-diode sheetlike end pumping to a multimode Nd:YVO4 laser and observed high-speed (>400-MHz) modulation of the intensity of chaotic pulsation near 1 MHz. The frequencies of modulation were the beat frequencies for pairs of closely spaced lasing modes. Asymmetric optical confinement and the resultant modal interference are shown to lead to oval-hollow-mode operation in which modal beat notes induce high-speed modulation, the frequency range of which is 2 orders of magnitude higher than the intrinsic relaxation oscillation frequency. Good numerical reproduction of the observed chaotic pulsations and their high-speed modulation was obtained with model equations in which such effects as nonlinear gain coupling among modes and field interference between pairs of modes were included. High-speed pulsations in nonchaotic lasers were also demonstrated.

© 2002 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.3100) Nonlinear optics : Instabilities and chaos

Kenju Otsuka, Tsong-Shin Lim, Jing-Yuan Ko, and Hironori Makino, "Self-induced high-speed modulation in microchip solid-state lasers with asymmetric end pumping," Opt. Lett. 27, 1696-1698 (2002)

Sort:  Author  |  Year  |  Journal  |  Reset


  1. K. Otsuka, Nonlinear Dynamics in Optical Complex Systems (Kluwer Academic, Dordrecht, The Netherlands, 1999).
  2. K. Otsuka, Y. Asakawa, R. Kawai, S.-L. Hwong, and J.-L. Chern, Jpn. J. Appl. Phys. 37, L1523 (1998).
  3. K. Otsuka, H. Utsu, R. Kawai, K. Ohki, Y. Asakawa, S.-L. Hwong, Y.-Y. Ko, and J.-L. Chern, Jpn. J. Appl. Phys. 38, L1025 (1999).
  4. K. Otsuka, S.-L. Hwong, and B. A. Nguyen, Phys. Rev. A 61, 053815 (2000).
  5. K. Otsuka, J.-Y. Ko, and T. Fukazawa, Jpn. J. Appl. Phys. 45, L252 (2002).
  6. W. Nakwaski and M. Osinski, in Progress in Optics, E. Wolf, ed. (Elsevier/North-Holland, Amsterdam, 1998), Vol. XXXVIIII, pp. 165–262.
  7. J. Mulet and S. Balle, IEEE J. Quantum Electron. 38, 291 (2002).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited