In the wideband direct modulation RF-over-fiber(RoF)transmission system,the noise factor of electro-optic conversion is very large.In order to guarantee the sensitivity of system re-ceiving,enough signal gain must be set before electro-optic conversion,which result in dynamic limitation of the system link.This paper provides a dynamic range improving method of wideband direct modulation RoF system,which can deploy the link dynamic range neatly and has a good ap-plication prospect.
widebanddirect modulationRF-over-fiberdynamic range
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