Optimized Single-Shot Photonic Time-Stretch Digitizer Using Complementary Parallel Single-Sideband Modulation Architecture and Digital Signal Processing

IEEE Photonics Journal

Yangxue Ma¹  Yali Zhang¹  Di Peng¹  Shangjian Zhang¹  Yong Liu¹  Zhiyao Zhang¹ 

[1] State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, China;

关键词: Analog-to-digital conversion;    microwave photonics;    nonlinear distortion;    single-sideband modulation;    time stretch.;   

DOI  :  10.1109/JPHOT.2017.2694442

来源: DOAJ

【 摘 要 】

A novel single-shot photonic time-stretch digitizer scheme is proposed based on complementary parallel single-sideband modulation architecture. Successive digital signal processing, including linearization operation and phase compensation, is employed to improve the performance. Both theoretical analysis and simulation results show that the proposed scheme can simultaneously solve the three vital problems in the single-shot photonic time-stretch digitizers, i.e., removal of the dynamic pulse envelope variation, the dispersion-induced penalty, and suppression of the modulation-induced distortion. Hence, the proposed single-shot photonic time-stretch digitizer can overcome the dispersion-induced bandwidth limitation and realize linearization performance.

【 授权许可】

Unknown