Patent ID: 8687971

Claim:
A system comprising: a first system with at least one optical port, each optical port is associated with a downstream optical transmitter and an upstream optical receiver; a Laser-on-CMOS (complementary metal-oxide-semiconductor) chip with at least one integrated optical port, each integrated optical port is associated with a downstream optical receiver and an upstream reflective light generating device, wherein the at least one downstream optical transmitter of the first system dictates what wavelength the corresponding at least one integrated optical port of the Laser-on-CMOS chip uses to transmit and receive data; and an optical fiber coupled between the first system and the Laser-on-CMOS chip; the first system comprises multiple optical ports coupled via multiple optical fibers to a wavelength division multiplexing (WDM) multiplexer, and the Laser-on-CMOS chip comprises multiple integrated optical ports coupled via multiple optical fibers to a WDM multiplexer, wherein the optical fiber is coupled between the WDM multiplexers; and the Laser-on-CMOS chip is part of an edge router, an aggregation switch, or a cross-connect.