Accurate wavelength meter for cw lasers
Journal Article
·
· Appl. Opt.; (United States)
An accurate wavelength meter (wavemeter) for cw lasers has been developed. The wavemeter is a Michelson-type fringe-counting two-beam interferometer operated in vacuum. A multicoincidence fringe counting technique has also been developed by which fringe fractions are determined with an uncertainty of 1/500 of a fringe. The result of wavelength comparisons between 612- and 633-nm I/sub 2/ stabilized He-Ne lasers showed good agreement with the value recommended by CIPM 1983. The discrepancy was <4 x 10/sup -10/ and the standard deviation of the comparison was 4 x 10/sup -10/.
- Research Organization:
- National Research Laboratory of Metrology, 1-1-4 Umezono, Sakura-mura, Niiharigun, Ibaraki 305, Japan
- OSTI ID:
- 6063514
- Journal Information:
- Appl. Opt.; (United States), Vol. 25:5
- Country of Publication:
- United States
- Language:
- English
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