Eye-Safe Terabit-Class WDM Optical Wireless: How Many Channels are Enough?

On the path towards Terabit-class optical wireless, the use of WDM technology poses many practical questions. Supported by a 1.8 km field-trial, and multiplexing up to 16×200G channels, we expose the tradeoffs between capacity and reliability depending on the channel count, optical pre-amplification architecture and coding requirements.