R.G. Brewer, J. Hoffnagle, et al.
Nature
We demonstrate a new form of interferometry which is independent of Maxwell's equations and measures optical frequency differences rather than wavelength ratios. Stable laser and electro-optic FM sideband techniques make a direct measurement of the mode spacing of a high finesse cavity with subhertz precision (0.4 Hz rms) over a 50-THz region. Experiments indicate errors below 10-10 over a 50-THz bandwidth and that improvements of several orders of magnitude are possible. New variables for interferometry simplify the use of multilayer dielectric mirrors and are directly measurable in situ.. AE © 1988 The American Physical Society.
R.G. Brewer, J. Hoffnagle, et al.
Nature
C. Fabre, R.G. DeVoe, et al.
Optics Letters
R.G. DeVoe, R.G. Brewer
CLEO 1984
A. Schenzle, M. Mitsunaga, et al.
Physical Review A