A concept for a new optical Ethernet interface card for FTTD (fiber-to-the-desktop) is proposed and application areas of the proposed card are discussed. As a first step towards realizing the concept, a one-fiber 100-megabit optical Ethernet PC card was fabricated by applying a hybrid integrated optical transceiver module and an MU connector. As a second step, a gigabit optical Ethernet PC card was fabricated for the first time and its performance was evaluated. These cards could become the standard in the coming optical FTTD/FTTN (fiber-to-the-notebook PCs) age because they are suitablie for notebook PCs and can operate in one-fiber WDM systems.
The wavelength-division multiplexing (WDM) passive optical network (PON) is one of the promising access network systems that can satisfy cost-effectiveness, inter-operability, and providing simultaneously of various services. Semiconductor optical amplifier (SOA) transceiver is an attractive devices achieving inter-operability which corresponds to wavelength independency in each optical network unit (ONU). This paper reviews the configuration of the WDM access systems and the performance of the SOA transceivers applied to the systems.