Hans-Jörg Clar, R. Schieder, M. Reich, and G. Winnewisser, "High precision frequency calibration of tunable diode lasers stabilized on an internally coupled Fabry-Perot interferometer," Appl. Opt. 28, 1648-1656 (1989)
For very high precision molecular spectroscopy we use a tunable diode laser which is frequency locked to an internally coupled Fabry-Perot interferometer (icFPI). The spectra are calibrated by means of the interference pattern of an iodine stabilized He–Ne reference laser which is simultaneously coupled into the icFPI. In this paper the exact relation between the diode laser frequency and the He–Ne fringe number is derived and a convenient calibration procedure yielding a frequency accuracy of 5 × 10−5 cm−1 at 10 μm is described.
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Note: The errors in parentheses are due to the experimental uncertainty and are given in units of the last digits quoted.
Calculated transition frequencies taken from S. Urban, D. Papousek, J. Kauppinen, K. Yamada, and G. Winnewisser, J. Mol. Spectrosc. 101, 1 (1983).
Measured by the heterodyne technique, K. J. Siemsen and B. G. Whitford, Opt. Commun. 22, 11 (1977).
Fourier transform spectroscopy, values taken from Ref. 5.
Diode laser heterodyne spectroscopy, J. P. Sattler, L. S. Miller, and T. L. Worchesky, J. Mol. Spectrosc. 88, 347 (1981); J. P. Sattler and T. L. Worchesky, J. Mol. Spectrosc. 90, 297 (1981).
IR-MW two-photon technique with the Lamb dip method using CO2 and N2O laser lines, S. M. Freund and T. Oka, Phys. Rev. A 13, 2178 (1976).