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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5397–5405

1-GHz repetition rate femtosecond OPO with stabilized offset between signal and idler frequency combs

R. Gebs, T. Dekorsy, S. A. Diddams, and A. Bartels  »View Author Affiliations

Optics Express, Vol. 16, Issue 8, pp. 5397-5405 (2008)

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We report an optical parametric oscillator (OPO) based on periodically poled lithium niobate (PPLN) that is synchronously pumped by a femtosecond Ti:sapphire laser at 1 GHz repetition rate. The signal output has a center wavelength of 1558nm and its spectral bandwidth amounts to 40 nm. The OPO operates in a regime where the signal- and idler frequency combs exhibit a partial overlap around 1600 nm. In this near-degeneracy region, a beat at the offset between the signal and idler frequency combs is detected. Phase-locking this beat to an external reference stabilizes the spectral envelopes of the signal- and idler output. At the same time, the underlying frequency combs are stabilized relative to each other with an instability of 1.5×10-17 at 1 s gate time.

© 2008 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

Original Manuscript: January 8, 2008
Revised Manuscript: March 28, 2008
Manuscript Accepted: March 28, 2008
Published: April 3, 2008

R. Gebs, T. Dekorsy, S. A. Diddams, and A. Bartels, "1-GHz repetition rate femtosecond OPO with stabilized offset between signal and idler frequency combs," Opt. Express 16, 5397-5405 (2008)

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