Temporal coherence control by electro-optic phase modulation
- 8 December 1995
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- p. 622-626
- https://doi.org/10.1117/12.228270
Abstract
We developed an efficient electro-optic phase modulator for deep microwave modulation to control temporal coherence of laser light. Deep modulation was achieved by quasi-velocity matching between modulation microwave and light with periodic domain inversion of a bulk electro-optic crystal. The interaction length is only limited by a diffraction loss in the bulk modulator. Sideband broadening up to 3 THz by 16.25 GHz modulation was achieved in the experiment with an Ar laser. Effective coherence time and length of the modulated light are 0.3 ps and 0.1 mm, respectively.Keywords
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