Linear photonic radio frequency phase shifter using a differential-group- delay element and an optical phase modulator

Changyuan Yu^*, Zhaohui Li, Yi Dong, Linghao Cheng, L. F.K. Lui, Chao Lu, Alan Pak Tao Lau, Hwa Yaw Tam, P. K.A. Wai

^*Corresponding author for this work