Development of simplified WDM system : Development of compact EDFA and optical receiver provided with optical BPF
Details
WDM technologies are applied to the long-distance communication network. Cost effectiveness is more important for applying this WDM technologies to communication network in small area. It's proposed to replace costly WDM multiplexer and demultiplexer with a cheap star coupler which is made with 3dB couplers. Optical receiver which is provided with optical BPF is newly designed, in order to choose one wavelength out of multiple input wavelengths. Besides, in order to make compensation for the transmission loss in transmission pass, low-gain erbium-doped fiber amplifier is developed. Assembling these modules, point-to-point system is built and evaluated. As a result of this evaluation, it is confirmed that this simplified optical transmission system in small area can be realized.
