| Self-Referenced Optical Frequency Comb |
| fr |
| I(f) |
| fo |
| f2n |
| fn |
| f |
| 0 |
| fn =
n fr + fo |
| x2 |
| 2nfr
+ 2fo |
| f2n
= 2nfr + fo |
| fo |
|
|
|
|
|
| • | fo is generated from a
heterodyne beat between the second |
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| harmonic of the nth
mode and the 2nth mode. |
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| • | Once
fr and fo are referenced to a known oscillator, all
the |
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| frequency modes
of the fs comb are fixed. |
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| D. J. Jones, et al.
Science 288, 635 (2000) |