Kalman-Filter-Aided Dual-Band Collaborative Frequency Self-Tuning in Multiband Transceiver for P-to-MP System with Tight Passband Narrowing

In a cascaded, tight wavelength-selective switch filtering point-to-multipoint optical system, a dynamic simulation demonstrated that low-Q-margin designs can be achieved by preventing excessive passband narrowing from light-source frequency drift caused by the dual-band collaborative frequency tuning of a Kalman filter during long-term system operation.