TY - GEN
T1 - All-Optical Windowed Binary Phase-Coded Microwave Waveform Generation
AU - Hu, Yang
AU - Chan, Erwin Hoi Wing
AU - Wang, Xudong
AU - Feng, Xinhuan
AU - Guan, Bai Ou
AU - Yao, Jianping
N1 - Funding Information:
Guangdong Province Key Field R&D Program Project (2020B0101110002); National Natural Science Foundation of China (NSFC) (61860206002, 61771221).
Publisher Copyright:
© 2021 IEEE.
Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - An approach to all-optical windowed binary phase-coded microwave waveform generation is proposed and demonstrated. An optical double sideband plus carrier (DSB+C) signal with the carrier and the two sidebands being orthogonally polarized is generated by a dual-polarization quadrature phase shift keying (DP-QPSK) modulator, with the generated signal sent to a phase modulator (PM). The PM can support phase modulation in two orthogonal polarization directions. The phase-modulated signals are projected to one polarization direction and detected at a photodetector (PD). Switching the polarity of the coding signal, a π phase shift is introduced. In addition, the amplitude of the generated signal is dependent on the amplitude of the input coding signal. Thus, a windowing function can be applied to the generated waveform by using a windowed input phase coding signal, to suppress the sidelobes in the spectrum of the generated microwave signal. The key features of the proposed waveform generator include all-optical generation without the need of electrical components and optical filters, thus ensuring a wide operating frequency range. Experimental results show that, using a Gaussian windowed 64-bit pseudorandom binary sequence (PRBS) coding signal, a microwave phase-coded microwave waveform is generated with the sidelobes of the spectrum largely suppressed to below the system noise floor and a pulse compression ratio (PCR) as large as 133.
AB - An approach to all-optical windowed binary phase-coded microwave waveform generation is proposed and demonstrated. An optical double sideband plus carrier (DSB+C) signal with the carrier and the two sidebands being orthogonally polarized is generated by a dual-polarization quadrature phase shift keying (DP-QPSK) modulator, with the generated signal sent to a phase modulator (PM). The PM can support phase modulation in two orthogonal polarization directions. The phase-modulated signals are projected to one polarization direction and detected at a photodetector (PD). Switching the polarity of the coding signal, a π phase shift is introduced. In addition, the amplitude of the generated signal is dependent on the amplitude of the input coding signal. Thus, a windowing function can be applied to the generated waveform by using a windowed input phase coding signal, to suppress the sidelobes in the spectrum of the generated microwave signal. The key features of the proposed waveform generator include all-optical generation without the need of electrical components and optical filters, thus ensuring a wide operating frequency range. Experimental results show that, using a Gaussian windowed 64-bit pseudorandom binary sequence (PRBS) coding signal, a microwave phase-coded microwave waveform is generated with the sidelobes of the spectrum largely suppressed to below the system noise floor and a pulse compression ratio (PCR) as large as 133.
KW - DP-QPSK modulator
KW - Microwave photonics
KW - Phase coding
KW - Photonic signal generation
KW - Pulse compression
UR - http://www.scopus.com/inward/record.url?scp=85123767767&partnerID=8YFLogxK
U2 - 10.1109/MWP53341.2021.9639419
DO - 10.1109/MWP53341.2021.9639419
M3 - Conference Paper published in Proceedings
AN - SCOPUS:85123767767
T3 - 2021 International Topical Meeting on Microwave Photonics, MWP 2021
SP - 1
EP - 4
BT - 2021 International Topical Meeting on Microwave Photonics, MWP 2021
PB - IEEE, Institute of Electrical and Electronics Engineers
CY - Piscataway, USA
T2 - 2021 International Topical Meeting on Microwave Photonics, MWP 2021
Y2 - 15 November 2021 through 17 November 2021
ER -