200gbase Sr4 Qsfp56 850nm 100m Mmf

I have a 100M fiber optic connection at home and I m using a 450 router

In most cases, yes, you can use your existing router with fiber optic internet, provided it has a WAN (Wide Area Network) Ethernet port and your ISP provides a modem/ONT with an Ethernet output. Routers designed for DSL (which uses phone line inputs) or cable (which uses coaxial inputs) won't work. This communication typically happens through an Ethernet port. The critical factor is not the *type* of internet coming. A fiber-optic connection is the best choice for fast home internet as it has a number of advantages compared to traditional copper cables, such as faster speeds and less interference. Many major ISPs, such as Verizon and Xfinity, offer fiber connections directly to your door, known as FttP or Fiber. However, you need a router capable of supporting multi-gig speeds to get fiber internet connectivity. However, the market is flooded with countless options, making the selection quite overwhelming.