Optical local area networks (LANs) using wavelength selective couplers

In wavelength-division-multiplexed ring and bus networks, stations normally connect to the fiber using fused biconical taper (FBT) attachments. In this paper, we investigate protocols for multichannel photonic bus/ring LANs which use active wavelength-selective taps rather than passive ones. Since stations actively tap the channel that they are accessing, synchronization and other functions are identical to existing single-channel LANs. …