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

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 ana...

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Bibliographic Details
Published in:IEEE photonics journal 2017-06, Vol.9 (3), p.1-14
Main Authors: Peng, Di, Zhang, Zhiyao, Ma, Yangxue, Zhang, Yali, Zhang, Shangjian, Liu, Yong
Format: Article
Language:English
Subjects:
Analog-to-digital conversion
Bandwidth
Dispersion
Distortion
microwave photonics
Modulation
nonlinear distortion
Optical distortion
Optical pulses
Photonics
single-sideband modulation
time stretch
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Summary: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.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2017.2694442