Low-noise synthesis of microwave signals from an optical source
- 26 May 2005
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 41 (11) , 650-651
- https://doi.org/10.1049/el:20050505
Abstract
The low-noise synthesis of a harmonic comb of microwave frequencies using a 1 GHz femtosecond-laser-based synthesiser that is referenced to a cavity-stabilised laser is demonstrated. The residual phase noise is ∼−110 dBc/Hz at 1 Hz offset from the 10 GHz harmonic. Phase noise is measured with an interferometric measurement system having low sensitivity to AM.Keywords
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