Reconfigurable microwave photonic mixer based on dual-polarization dual-parallel Mach–Zehnder modulator

2018 ◽  
Vol 428 ◽  
pp. 131-135 ◽  
Author(s):  
Zhan Shi ◽  
Sha Zhu ◽  
Ming Li ◽  
Ning Hua Zhu ◽  
Wei Li
Keyword(s):  
Dual Polarization ◽  
Microwave Photonic ◽  
Mach Zehnder Modulator

A microwave photonic phase detector based on a dual-polarization dual-drive Mach-Zehnder modulator

2021 ◽  
Author(s):  
Kunlin Shao ◽  
Shuo Liu ◽  
Penghui Gao ◽  
Yamei Zhang ◽  
Shilong Pan ◽  
...  
Keyword(s):  
Phase Detector ◽  
Dual Polarization ◽  
Microwave Photonic ◽  
Mach Zehnder Modulator

scholarly journals Microwave Photonic Frequency Conversion Based on a Wavelength Swept Laser

2020 ◽  
Vol 10 (11) ◽  
pp. 3813
Author(s):  
Youxue Kong ◽  
Yuan Cao ◽  
Lin Wang ◽  
Guangying Wang ◽  
Xinhuan Feng ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Microwave Signal ◽  
Optical Carrier ◽  
Microwave Photonic ◽  
System A ◽  
Conversion Frequency ◽  
Mach Zehnder Modulator ◽  
Conversion Performance ◽  
5 Ghz

Microwave photonic frequency conversion, with flexible tunability and a simple structure based on a wavelength swept laser (WSL), is proposed and experimentally demonstrated. In the proposed frequency conversion system, a broadband WSL was used to generate a frequency-chirped optical carrier, which was sent to a Mach Zehnder modulator (MZM). A microwave signal, with its frequency to be converted, was applied to the MZM. The modulated signal was then sent to a dispersive device, where the waveform was compressed or expanded depending on the dispersion of the dispersive device. After photodetection, a frequency up-converted or down-converted microwave signal was generated. The tuning of the conversion frequency was achieved by adjusting the chirp rate of the optical carrier from the WSL or the dispersion of the dispersive device. The proposed approach was experimentally demonstrated. A microwave signal, with its frequency at 5 GHz, was up-converted to 5.577 GHz and down-converted to 4.936 GHz. The quality of the frequency converted microwave signal was also evaluated. The conversion performance could be further improved by introducing a WSL with a high duty cycle.

scholarly journals A Tunable Dual-Passband Microwave Photonic Filter Based on Optically Injected Distributed Feedback Semiconductor Lasers and Dual-Output Mach-Zehnder Modulator

2020 ◽  
Vol 10 (10) ◽  
pp. 3631
Author(s):  
Jiayi Zhao ◽  
Jingjing Hu ◽  
Pengcheng Deng ◽  
Runze Yu ◽  
Ruoxian Liu ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Insertion Loss ◽  
Distributed Feedback ◽  
Center Frequency ◽  
Optical Signals ◽  
Microwave Photonic ◽  
Tunable Range ◽  
Novel Approach ◽  
Mach Zehnder Modulator ◽  
High Flexibility

In this paper, a novel approach to achieving a wideband tunable dual-passband microwave photonic filter (MPF) is proposed based on optical-injected distributed feedback (DFB) semiconductor lasers and a dual-output Mach–Zehnder modulator (DOMZM). The fundamental concepts for realizing the MPF are the wavelength-selective amplification effect and the period-one oscillation state under optically injected DFB lasers. These effects provide a widely tunable range of center frequency, along with high flexibility and low insertion loss. The proposed MPF is experimentally demonstrated, showing that the dual-passband center frequency in the MPF can be tuned independently from 19 to 37 GHz by adjusting the detuning frequency and injection ratio. Meanwhile, the insertion loss of the system is about 15 dB when there is no optical or electrical amplifier in the MPF link. The out-of-band suppression ratio of the MPF is more than 20 dB, which can be improved by adjusting the power of the two optical signals.

Single Passband Microwave Photonic Filter using a Dual-Parallel Mach–Zehnder Modulator

2017 ◽  
Author(s):  
Shijie Song ◽  
Shuo Zhang ◽  
Bo Liu ◽  
Suen Xin Chew ◽  
Xiaoke Yi ◽  
...  
Keyword(s):  
Microwave Photonic ◽  
Mach Zehnder Modulator
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