| Autor: |
Ackerman, E.I., Burns, W.K., Betts, G.E., Chen, J.X., Prince, J.L., Regan, M.D., Roussell, H.V., Cox, C.H. |
| Zdroj: |
Journal of Lightwave Technology; 8/1/2008, Vol. 26 Issue 15, p2441-2448, 8p |
| Abstrakt: |
Previously published analytical models for the noise figure of an amplifierless fiber-optic link fail to predict the measured performance, with a discrepancy of 1.1 dB at 1 GHz that increases to 2.3 dB by 12 GHz. We use an equivalent circuit to derive the effect of an additional source of noise not accounted for in earlier models: thermal noise arising from loss in the modulator's traveling-wave electrodes. The electrode thermal noise has a frequency dependence matching that of the link's noise figure, such that predictions using the improved model match the measured 1-12 GHz performance of a link with record low noise figure to within ~ 0.4 dB across this band. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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