2 papers
physics.optics2026
220-GBd optical coherent waveform generation using temporal unitary transforms
Callum Deakin, Xi Chen, Di Che
We use temporal unitary transforms to generate 16-QAM up to 220 GBd using only 50-GHz electrical bandwidth. The technique is theoretically lossless and can generate arbitrary optic…
physics.optics2025
314-GBaud Single-Wavelength Signaling Generated All-Electronically by a 158-GHz Digital-Band-Interleaved DAC
Di Che, Callum Deakin, Xi Chen
We demonstrate an all-electronic generation of 314-GBaud PS 8-ASK signals by a 158-GHz digital-band-interleaved DAC. The signals drive a thin-film LiNbO3 modulator that achieves ov…