| The complete
expression of the result! |
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| Wavelength
of a He-Ne laser stabilised by |
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| saturated
absorption: absorbing molecule 127I2, |
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| transition
11-5, R(127), component a13. |
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| • | third
harmonic detection |
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| • | iodine
cell wall temperature 25 + 5 °C |
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| • | cold
finger temperature 15 +
0.2 °C |
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| • | modulation
6 + 0.3 MHz peak to peak |
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| • | one-way
intracavity beam power 10 + 5 mW |
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| λ
= 632 991 398.22 femtometres, with |
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| a
relative standard uncertainty of 2.5 |
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| x
10-11 |
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