Reconfigurable silicon photonic transceiver for WDM BPSK non-coherent detection

BPSK modulation offers significant advantages for long-reach coherent optical communications, while conventional demodulation relies on complex coherent receivers, increasing system cost and footprint. In this work, we demonstrate a simplified silicon photonic transceiver chip with a TFLN electro-optic comb source, which enables simultaneous generation and demodulation of WDM signals. The on-chip MRR array facilitates direct BPSK demodulation in the optical domain, recovering data via waveform acquisition and thereby eliminating the need for coherent detection and improving energy efficiency. We experimentally demonstrate the simultaneous generation and demodulation of 3 × 20 Gbaud BPSK signals on a single chip, achieving a receiver sensitivity of -28 dBm at the 3.8×10^-3 HD-FEC threshold. Moreover, the results underscore the potential of silicon-TFLN heterogeneous integration for compact, single-chip coherent transceivers.