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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 20 — Oct. 3, 2005
  • pp: 7928–7936

Irregular lasing pattern formation and dynamic effects in a thin-slice solid-state laser

Yoshihiko Miyasaka, Tatsuro Narita, Kenju Otsuka, Hironori Makino, Akane Okamoto, and Jing-Yuan Ko  »View Author Affiliations

Optics Express, Vol. 13, Issue 20, pp. 7928-7936 (2005)

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We found an abrupt transverse-mode transition from an irregular to a Gaussian lasing pattern or billiard-like lasing patterns with increasing the pump power in a laser-diode-pumped thin-slice Nd:GdVO4 laser with coated dielectric mirrors on both ends. A variety of irregular stationary lasing patterns were observed with a slight change in the pump position due to polished crystal surface roughness and ineffective lasing field confinement in transverse directions. A physical interpretation for observed irregular patterns was given in terms of wave formations in gradient refractive index lens with undulated reflective end surfaces. Intensity modulation of the laser, resulting from the interference of non-orthogonal transverse mode pairs embedded in the irregular lasing patterns, and associated rich chaotic pulsations were demonstrated. Observed nonlinear dynamics were well reproduced by numerical simulation.

© 2005 Optical Society of America

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(270.3100) Quantum optics : Instabilities and chaos

ToC Category:
Research Papers

Original Manuscript: July 21, 2005
Revised Manuscript: September 13, 2005
Published: October 3, 2005

Yoshihiko Miyasaka, Tatsuro Narita, Kenju Otsuka, Hironori Makino, Akane Okamoto, and Jing-Yuan Ko, "Irregular lasing pattern formation and dynamic effects in a thin-slice solid-state laser," Opt. Express 13, 7928-7936 (2005)

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