US20170237497A1_page_38

US20170237497A1 | page 38 | https://thedailydialectics.com/pdfs/wipow/US20170237497A1/US20170237497A1.pdf

US 2017/0237497 Al [0050] The transceiver or ONU 60 at the user end includes a carrier source (e.g., laser diode or light-emitting diode) for generating an optical signal that carries the information to be sent from an end user 30 to the CO 40. A laser is a high-frequency generator or oscillator,…