title: Novel 2N bit bipolar photonic digital-to-analog converter based on optical DQPSK modulation coupled with differential detection.
abstract: A novel 2N bit bipolar photonic digital-to-analog converter (PDAC) scenario based on the optical differential quadrature phase shift keying (ODQPSK) modulation coupled with differential detection is proposed. Compared with other proposed schemes, this bipolar PDAC has a greater dynamic range and a larger noise margin with good scalabilities both in speed and resolution. We demonstrate a 4 bit PDAC in a proof-of-principle experiment at a sampling rate of 2.5 GS/s.
authors.affiliation: Tsinghua National Laboratory for Information Science and Technology, State Key Laboratory on Integrated Optoelectronics, Tsinghua University, Beijing, China.
authors.forename: Jinxin
authors.initials: J
authors.lastname: Liao
authors.forename: He
authors.initials: H
authors.lastname: Wen
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Zheng
authors.forename: Hanyi
authors.initials: H
authors.lastname: Zhang
authors.forename: Yili
authors.initials: Y
authors.lastname: Guo
authors.forename: Bingkun
authors.initials: B
authors.lastname: Zhou