PHOTONIC MICROWAVE NOTCH FILTER

摘要

PURPOSE: A photonic microwave notch filter is provided to improve frequency selectivity by increasing a notch depth. CONSTITUTION: A photonic microwave notch filter(10) comprises a modulator(100), a distributer, and a demodulator(300). The modulator modulates an input signal by using multi-wavelength light. The distributer adds different delay according to the wavelength of multi-wavelength light. The demodulator demodulates the input signal from the multi-wavelength light to which the different delay is added.