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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 14 — Jul. 7, 2008
  • pp: 10728–10735

Semi-automatic, octave-spanning optical frequency counter

Tze-An Liu, Ren-Huei Shu, and Jin-Long Peng  »View Author Affiliations

Optics Express, Vol. 16, Issue 14, pp. 10728-10735 (2008)

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This work presents and demonstrates a semi-automatic optical frequency counter with octave-spanning counting capability using two fiber laser combs operated at different repetition rates. Monochromators are utilized to provide an approximate frequency of the laser under measurement to determine the mode number difference between the two laser combs. The exact mode number of the beating comb line is obtained from the mode number difference and the measured beat frequencies. The entire measurement process, except the frequency stabilization of the laser combs and the optimization of the beat signal-to-noise ratio, is controlled by a computer running a semi-automatic optical frequency counter.

© 2008 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 21, 2008
Revised Manuscript: June 25, 2008
Manuscript Accepted: June 28, 2008
Published: July 2, 2008

Tze-An Liu, Ren-Huei Shu, and Jin-Long Peng, "Semi-automatic, octave-spanning optical frequency counter," Opt. Express 16, 10728-10735 (2008)

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  1. For example, http://www.optocomb.com/eng/index.html
  2. Th. Udem, R. Holzwarth, and T. W. Hänsch, "Optical frequency metrology," Nature 416, 233-237 (2002). [CrossRef] [PubMed]
  3. J.-L. Peng and R.-H. Shu, "Determination of absolute mode number using two mode-locked laser combs in optical frequency metrology," Opt. Express 15, 4485-4492 (2007). [CrossRef]
  4. H. Inaba, Y. Daimon, F.-L. Hong, A. Onae, K. Minoshima, T. R. Schibli, H. Matsumoto, M. Hirano, T. Okuno, M. Onishi, and M. Nakazawa, "Long-term measurement of optical frequencies using a simple, robust and low-noise fiber based frequency comb," Opt. Express 14, 5223-5231 (2006). [CrossRef]
  5. L.-S. Ma, M. Zucco, S. Picard, L. Robertsson, and R. S. Windeler, "A new method to determine the absolute mode number of a mode-locked femtosecond laser comb used for absolute optical frequency measurements," IEEE J. Sel. Top. Quantum Electron. 9, 1066-1071 (2003). [CrossRef]
  6. T.-A. Liu, R.-H. Shu, and J.-L. Peng, "Semi-automatic, Octave-spanning Optical Frequency Counter," Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR), Korea, Aug 26-31, ThG2-2, 2007, (pp. 1032-1033).
  7. J. Zhang, Z. H. Lu, Y. H. Wang, T. Liu, A. Stejskal, Y. N. Zhao, R. Dumke, Q. H. Gong, and L. J. Wang, "Exact frequency comb mode number determination in precision optical frequency measurements," Laser Phys. 17, 1025-1028 (2007). [CrossRef]
  8. L. E. Nelson, D. J. Jones, K. Tamura, H. A. Haus, and E. P. Ippen, "Ultrashort-pulse fiber ring lasers," Appl. Phys. B 65, 277-294 (1997). [CrossRef]
  9. J.-L. Peng, H. Ahn, R.-H. Shu, H.-C. Chui, and J. W. Nicholson, "Highly stable, frequency-controlled mode-locked erbium fiber laser comb," Appl. Phys. B 86, 49-53 (2007). [CrossRef]

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Fig. 1. Figs. 2. Fig. 3.

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