Microwave signal generation with optical injection locking
- 15 September 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (18) , 1502-1504
- https://doi.org/10.1364/ol.21.001502
Abstract
Two single-mode laser diodes have been injection locked to the +1 and −1 diffracted orders of a 4.6-GHz acousto-optical modulator. The measured locking bandwidth was 3 GHz for a locking gain of 35 dB. The microwave signal at 9.2 GHz had a measured linewidth of less than a few hertz. We used this system to drive stimulated Raman transitions between the cesium ground-state hyperfine levels. We observed Ramsey fringes and used them to characterize the microwave signal phase noise.Keywords
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