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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 965–970

Oscillating longitudinal-mode control of a microchip green laser by injection current

Joji Watanabe and Tetsuo Harimoto  »View Author Affiliations

Optics Express, Vol. 15, Issue 3, pp. 965-970 (2007)

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We describe a simple method of controlling the oscillating longitudinal mode of a diode-pumped-microchip green laser by changing injection currents to the laser diode. We observed the dependence of the oscillating longitudinal modes on the injection current and operation temperature in the microchip green laser, and demonstrated that the stable oscillating longitudinal-mode operation under the single mode, two and three modes can be achieved by only controlling injection currents from 850 to 1050 mA. The maximum output power of the microchip green laser as high as 105.5 mW was obtained under the single longitudinal-mode operation pumped by an 810 mW pumping power. The corresponding long-term power stability was better than 0.47 % for the measuring time interval of 12 hours.

© 2007 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3570) Lasers and laser optics : Lasers, single-mode
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 13, 2006
Revised Manuscript: January 22, 2007
Manuscript Accepted: January 22, 2007
Published: February 5, 2007

Joji Watanabe and Tetsuo Harimoto, "Oscillating longitudinal-mode control of a microchip green laser by injection current," Opt. Express 15, 965-970 (2007)

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