Open AccessOptimized Single-Shot Photonic Time-Stretch Digitizer Using Complementary Parallel Single-Sideband Modulation Architecture and Digital Signal Processing
Author(s) -
Di Peng,
Zhiyao Zhang,
Yangxue Ma,
Yali Zhang,
Shangjian Zhang,
Yong Liu
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2694442
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
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.