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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 18 — Sep. 8, 2014
  • pp: 21690–21700

Mode-locking and frequency mixing at THz pulse repetition rates in a sampled-grating DBR mode-locked laser

Lianping Hou, Mohsin Haji, and John H. Marsh  »View Author Affiliations

Optics Express, Vol. 22, Issue 18, pp. 21690-21700 (2014)

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We report a sampled grating distributed Bragg reflector (SGDBR) laser with two different gratings which mode-lock independently at respective pulse repetition frequencies of 640 and 700 GHz. The device operates in distinct regimes depending on the bias conditions, with stable pulse trains observed at 640 GHz, 700 GHz, the mean repetition frequency of 666 GHz, and the sum frequency of 1.34 THz (due to nonlinear mixing). Performance is consistent and highly reproducible with exceptional stability observed over wide ranges of drive bias conditions. Furthermore, a monolithically integrated semiconductor optical amplifier is used to amplify the pulse trains, providing an average output power of 46 mW at 666 GHz.

© 2014 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(230.1480) Optical devices : Bragg reflectors
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(320.7090) Ultrafast optics : Ultrafast lasers
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 6, 2014
Revised Manuscript: August 20, 2014
Manuscript Accepted: August 21, 2014
Published: August 29, 2014

Lianping Hou, Mohsin Haji, and John H. Marsh, "Mode-locking and frequency mixing at THz pulse repetition rates in a sampled-grating DBR mode-locked laser," Opt. Express 22, 21690-21700 (2014)

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