S.T.Chu acknowledges support from the City University of Hong Kong(APRC Grant no.9610395);Y.Ou acknowledges support from the Fundamental Research Funds for the Central Universities(Grant No.2023RC50).
Integrated switches play a crucial role in the development of reconfigurable optical add-drop multiplexers(ROADMs)that have greater flexibility and compactness,ultimately leading to robust single-chip solutions.Despit...