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| Higher-accuracy IR wavelength standard: |
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| nonlinear spectroscopy |
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|
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| • | Comité
International des Poids et Measures, 2000 |
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| – | 13C2H2 P(16) ±
100 kHz (2000) |
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| – | Comb-based
meas. ± 2 kHz (2005) |
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| • | Great Britain,
Japan, Canada, Japan |
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|
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| Existing
portable wavelength |
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| references
for the telecom industry |
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|
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| laser |
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| or LED |
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| C2H2 |
| W.C. Swann and S.L.
Gilbert. (NIST), Opt. Soc. Am. B, 17, 1263 (2000). |