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Updated: May 22, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Novel 2N bit bipolar photonic digital-to-analog converter based on optical DQPSK modulation coupled with differential
Jinxin Liao1, He Wen, Xiaoping Zheng
1Tsinghua National Laboratory for Information Science and Technology, State Key Laboratory on Integrated Optoelectronics, Tsinghua University, Beijing, China.
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.
