Integrated microwave photonic splitter with reconfigurable amplitude, phase, and delay offsets

This work presents an integrated microwave photonics splitter with reconfigurable amplitude, phase, and delay offsets. The core components for this function are a dual-parallel Mach–Zehnder modulator, a deinterleaver, and tunable delay lines, all implemented using photonic integrated circuits. Using a demonstrator with an optical free spectral range of 25 GHz, we show experimentally the RF splitting function over two continuous bands, i.e., 0.9–11.6 GHz and 13.4– 20 GHz. This result promises a deployable solution for creating wideband, reconfigurable RF splitters in integrated forms.