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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 1 — Jan. 14, 2013
  • pp: 1335–1343

Modelocking and femtosecond pulse generation in chip-based frequency combs

Kasturi Saha, Yoshitomo Okawachi, Bonggu Shim, Jacob S. Levy, Reza Salem, Adrea R. Johnson, Mark A. Foster, Michael R. E. Lamont, Michal Lipson, and Alexander L. Gaeta  »View Author Affiliations

Optics Express, Vol. 21, Issue 1, pp. 1335-1343 (2013)

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We investigate simultaneously the temporal and optical and radio-frequency spectral properties of parametric frequency combs generated in silicon-nitride microresonators and observe that the system undergoes a transition to a mode-locked state. We demonstrate the generation of sub-200-fs pulses at a repetition rate of 99 GHz. Our calculations show that pulse generation in this system is consistent with soliton modelocking. Ultimately, such parametric devices offer the potential of producing ultra-short laser pulses from the visible to mid-infrared regime at repetition rates from GHz to THz.

© 2013 OSA

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(320.7120) Ultrafast optics : Ultrafast phenomena

ToC Category:
Ultrafast Optics

Original Manuscript: November 16, 2012
Revised Manuscript: December 21, 2012
Manuscript Accepted: December 22, 2012
Published: January 11, 2013

Virtual Issues
February 26, 2013 Spotlight on Optics

Kasturi Saha, Yoshitomo Okawachi, Bonggu Shim, Jacob S. Levy, Reza Salem, Adrea R. Johnson, Mark A. Foster, Michael R. E. Lamont, Michal Lipson, and Alexander L. Gaeta, "Modelocking and femtosecond pulse generation in chip-based frequency combs," Opt. Express 21, 1335-1343 (2013)

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