Abstract

We have conducted a study of potential wavelength calibration references for use as both moderate-accuracy transfer standards and high-accuracy National Institute of Standards and Technology (NIST) internal references in the 1280-1320-nm wavelength-division-multiplexing region. We found that most atomic and molecular absorption lines in this region are not ideal for use as wavelength references owing to factors such as weak absorption,complex spectra, or special requirements (for example, frequency-doubling or excitation with an additional light or discharge source). We have demonstrated one of the simpler schemes consisting of a tunable diode laser stabilized to a Doppler-broadened methane absorption line. By conducting a beat-note comparison of this reference to a calcium-based optical frequency standard,we measured the methane line center with an expanded uncertainty (2 ) of ± {2.3} MHz. This methane-stabilized laser now serves as a NIST internal reference.

[IEEE ]

PDF Article

References

  • View by:
  • |

  1. A. Bruner, V. Mahal, I. Kiryuschev, A. Arie, M. A. Arbore and M. M. Fejer, "Frequency stability at the kilohertz level of a rubidium-locked diode laser at 192.114 THz", Appl. Opt., vol. 37, pp. 6410-6414, Sept. 1998.
  2. A. Arie, M. L. Bortz, M. M. Fejer and R. L. Byer, "Iodine spectroscopy and absolute frequency stabilization with the second harmonic of the 1319-nm Nd: YAG laser", Opt. Lett., vol. 18, pp. 1757-1759, Oct. 1993.
  3. R. A. Toth, "Extensive measurements of H216O line frequencies and strengths: 5750 to 7965 cm-1", Appl. Opt., vol. 33, pp. 4851-4867, July 1994.
  4. K. Chan, H. Ito and H. Inaba, "Absorption measurement of ν2 + 2ν3 band of CH4 at 1.33 µm using an InGaAsP light emitting diode", Appl. Opt., vol. 22, pp. 3802-3804, Dec. 1983.
  5. H. Kanamori, S. Takashima and K. Sakurai, "Near-infrared diode laser spectrometer with frequency calibration using internal second harmonics", Appl. Opt., vol. 30, pp. 3795-3798, Sept. 1991.
  6. M. de Labachelerie, K. Nakagawa, Y. Awaji and M. Ohtsu, "High-frequency-stability laser at 1.5 µm using Doppler-free molecular lines", Opt. Lett., vol. 20, pp. 572-574, Mar. 1995.
  7. K. Suzumura, C. Ishibashi and H. Sasada, "Precise frequency-difference measurement between the 1.66 µm transitions of methane", Opt. Lett., vol. 22, pp. 1356-1358, Sept. 1997.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.