Wideband Tunable Dispersion Compensator Using a 25-Stage PLC-MZI
نویسنده
چکیده
In high-bit-rate optical transmission systems that are being introduced into commercial applications, such as those with 40-Gbps bit-rate, there is a need for tunable dispersion compensators (TDCs) in order to additively compensate for chromatic dispersion (CD) fluctuations due to temperature changes and the like in the transmission lines. Accordingly, a variety of TDCs based on different principles have been reported so far 1)~7). In particular, the cascaded Mach-Zehnder interferometer (MZI) type TDC using a lattice type filter based on the silica-based planar lightwave circuit (PLC) technology is promising because of its ease of control and large achievable dispersion 5)~7).
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