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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4890–4896

Single-frequency synthesis at telecommunication wavelengths

V. Ahtee, M. Merimaa, and K. Nyholm  »View Author Affiliations

Optics Express, Vol. 17, Issue 6, pp. 4890-4896 (2009)

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We report an optical single-frequency synthesizer at the 1.55 μm telecommunications band. Output from a continuous-wave external cavity diode laser is frequency doubled and phase locked to a predetermined component of a Ti:S laser frequency comb. The synthesizer is capable of generating a single user-specified frequency from an atomic time base within the 192–196 THz gain bandwidth of an erbium-doped fiber amplifier. By tuning the repetition rate of the femtosecond laser the synthesized optical frequency can be swept with sub-kilohertz step size. Frequency sweeps of several GHz are realized by automatically re-locking the diode laser to adjacent comb components during frequency sweep. We demonstrate the operation of the device by presenting results of Doppler-free spectroscopy on acetylene using synthesized frequencies.

© 2009 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(140.3600) Lasers and laser optics : Lasers, tunable
(300.6320) Spectroscopy : Spectroscopy, high-resolution

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 5, 2009
Revised Manuscript: February 26, 2009
Manuscript Accepted: March 6, 2009
Published: March 13, 2009

V. Ahtee, M. Merimaa, and K. Nyholm, "Single-frequency synthesis at telecommunication wavelengths," Opt. Express 17, 4890-4896 (2009)

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