You can use a cable modem instead of an optic fiber modem.
You can use a cable modem instead of an optic fiber modem.
Can you find alternative methods to turn an optical fiber into an Ethernet connection without a modem?
You can use a media converter to send your PC to a router, then connect it via LAN through the router.
The results vary widely. Many media player outputs rely on fiber for data transmission, which likely limits their ability to handle RJ45 standards.
In most situations the "modem" serves as an authentication step to connect you to your ISP's network. Unless your provider offers 802.1x credentials—which they typically don’t—they won’t provide them. You’d have to transform the likely PON signal into copper using a converter, which is practically unfeasible since it requires a tunable optic that also fits your ISP’s setup.