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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 12 — Jun. 13, 2005
  • pp: 4539–4553

Mode-locking of monolithic laser diodes incorporating coupled-resonator optical waveguides

Yang Liu, Zheng Wang, Minghui Han, Shanhui Fan, and Robert Dutton  »View Author Affiliations

Optics Express, Vol. 13, Issue 12, pp. 4539-4553 (2005)

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We investigate the operational principle of mode-locking in monolithic semiconductor lasers incorporating coupled-resonator optical waveguides. The size of mode-locked lasers operating at tens of GHz repetition frequencies can be drastically reduced owing to the significantly decreased group velocity of light. The dynamics of such devices are analyzed numerically based on a coupled-oscillator model with the gain, loss, spontaneous emission, nearest-neighbor coupling and amplitude phase coupling (as described by the linewidth enhancement factor α) taken into account. It is demonstrated that active mode-locking can be achieved for moderate α parameter values. Simulations also indicate that large α parameters may destabilize the mode-locking behavior and result in irregular pulsations, which nevertheless can be effectively suppressed by incorporating detuning of individual cavity resonant frequencies in the device design.

© 2005 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Research Papers

Original Manuscript: March 3, 2005
Revised Manuscript: May 26, 2005
Published: June 13, 2005

Yang Liu, Zheng Wang, Minghui Han, Shanhui Fan, and Robert Dutton, "Mode-locking of monolithic laser diodes incorporating coupled-resonator optical waveguides," Opt. Express 13, 4539-4553 (2005)

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