Photonic generation of binary phase-coded microwave waveforms and phase-coded pulses with ultrawide frequency tunable range

Weilei Wang; Aijun Wen; Zhaoyang Tu; Wu Zhang; Dong Liang; Xiao Zhang; Qing Wang

doi:10.1117/1.OE.57.10.106105

20 October 2018 Photonic generation of binary phase-coded microwave waveforms and phase-coded pulses with ultrawide frequency tunable range

Weilei Wang, Aijun Wen, Zhaoyang Tu, Wu Zhang, Dong Liang, Xiao Zhang, Qing Wang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 10, 106105 (October 2018). https://doi.org/10.1117/1.OE.57.10.106105

Abstract

A scheme that can produce a continuous wave (CW) phase-coded signal and phase-coded pulses is proposed. The proposed scheme is based on a dual-polarization Mach–Zehnder modulator (DPol-MZM), a polarization modulator (PolM) and a balanced photodetector (BPD) without the help of an electrical phase shifter or an electrical power divider. In DPol-MZM, a carrier-suppressed double sideband (CS-DSB) signal and an optical carrier are, respectively, produced in the upper and lower arms, which are in two orthogonal polarization states. The output is then sent to a PolM. The polarization multiplexed CS-DSB and optical carrier are phase modulated by driving the RF port of the PolM with a coding signal. After beating between the modulated CS-DSB and optical carrier in a BPD, a stable CW phase-coded signal or phase-coded pulses can be obtained. The proposed scheme is experimentally verified. Phase-coded microwave waveforms at 6 and 11 GHz are generated and phase-coded pulses at 11 GHz are also produced.

Citation Download Citation

Weilei Wang, Aijun Wen, Zhaoyang Tu, Wu Zhang, Dong Liang, Xiao Zhang, and Qing Wang "Photonic generation of binary phase-coded microwave waveforms and phase-coded pulses with ultrawide frequency tunable range," Optical Engineering 57(10), 106105 (20 October 2018). https://doi.org/10.1117/1.OE.57.10.106105

Received: 11 May 2018; Accepted: 2 October 2018; Published: 20 October 2018

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