[Paper] Evaluation of Optical Network of Multichannel Baseband Digital Broadcasts Over FTTH

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We previously proposed a time division multiplexing method for digital broadcasts over fiber-to-the-home. We evaluated the number of optical amplifiers, subscribers, and service areas with a simple star-type optical network model. Compared with the frequency division multiplexing methods used in conventional cable television systems, the number of optical amplifiers of our previously proposed method achieved less than 16 - 37% that of conventional methods or accommodated an increase in subscribers 2.9 - 6.1 times more than conventional methods even with an optical laser of inferior relative intensity noise (RIN). By analyzing a dominant factor for configuring a cost-effective distribution network, we found that it was valid to mitigate the requirement for optical power at a receiver and set a strict requirement for the RIN of an optical laser.

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