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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 1 — Jan. 1, 2009
  • pp: 85–87

Generation of a 20 GHz train of subpicosecond pulses with a stabilized optical-frequency-comb generator

Shijun Xiao, Leo Hollberg, and Scott A. Diddams  »View Author Affiliations

Optics Letters, Vol. 34, Issue 1, pp. 85-87 (2009)

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With a modulator-based 10 GHz optical-frequency-comb generator at 1.55 μ m , we report a 20 GHz repetitive train of optical pulses as short as 450 fs . The timing stability of the 20 GHz pulses, in addition to the phase for optical-comb modes, shows a strong dependence on the relative frequency detuning between the comb generator’s cavity and the seed cw laser. With a new and simple scheme, the comb generator’s cavity resonance was locked to a narrow-linewidth seed laser within an estimated optical-frequency range 6 MHz , enabling high-fidelity 20 GHz subpicosecond pulses and stable optical-frequency-comb generation for indefinite periods.

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.3940) Instrumentation, measurement, and metrology : Metrology
(320.5390) Ultrafast optics : Picosecond phenomena
(320.5550) Ultrafast optics : Pulses

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: September 16, 2008
Revised Manuscript: October 30, 2008
Manuscript Accepted: November 4, 2008
Published: December 24, 2008

Shijun Xiao, Leo Hollberg, and Scott A. Diddams, "Generation of a 20 GHz train of subpicosecond pulses with a stabilized optical-frequency-comb generator," Opt. Lett. 34, 85-87 (2009)

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