Single-modulator Based Multi-Format Switchable Signal Generator Without Background Noise
Shalu Zhu,Zhijie Chen,Yunxin Wang,Ya Jin,Kunpeng Zhai,Yunping Bai,Jun Tan,Pei Yuan Wan,Xu Feng Liu,Wei Liu,Ninghua Zhu +10 more
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TL;DR: In this article , a photonic multi-format background-free binarily modulated microwave signal generator using a single dual-polarization dual-parallel Mach-Zehnder modulator is proposed and demonstrated.
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Abstract: A photonic multi-format background-free binarily modulated microwave signal generator using a single dual-polarization dual-parallel Mach–Zehnder modulator is proposed and demonstrated. The proposed generator features good reconfiguration and switchability. By simply adjusting the direct current biases of the modulator, amplitude shift keying (ASK), phase shift keying (PSK) and frequency-shift keying (FSK) microwave signals can be generated. Benefiting from the complementary intensity modulation, there is no residual baseband modulated signal in the generated binarily modulated signals. The system does not involve any optical or electrical filters, which ensures good tunability of the generator. By changing the frequency of the driven microwave carrier and bit rate of the electrical coded signal, the frequency and rate of the generated multi-format signals can be adjusted accordingly. The multi-format switchable signal generator has great potential in multi-functional communication and radar systems.
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Citations
Photonic-Based Multiformat Signal Generator With Dispersion Immunity for Multichannel Transmission
TL;DR: Photonic-based multiformat signal generator with dispersion immunity for multichannel transmission eliminates chromatic dispersion-induced power fading and achieves excellent frequency reconfiguration and multiformat switch ability.
2
Multi-Format switchable microwave signal generation based on optical domain modulation
Shalu Zhu,Jiaxue Feng,Kunpeng Zhai,Yiwen Zhang,Ninghua Zhu,Edwin Yue-Bun Pun +5 more
- 01 Nov 2022
TL;DR: In this paper , a multi-format switchable microwave signal generator using a single dual-polarization dual-parallel Mach-Zehnder modulator is proposed and demonstrated.
Microwave photonic multi-frequency reconfigurable PSK/ASK/FSK formats modulation signals generation
Xuhua Cao,Ming Li,Ning Hua Zhu +2 more
TL;DR: A novel photonic approach generates reconfigurable multi-frequency microwave signals with PSK, ASK, and FSK formats using a dual-polarization dual-drive Mach-Zehnder modulator, offering tunability and compactness for radar and communication systems.
Photonic generation of ASK microwave signals with SSB format
Weilei Gou,Yuanlong Yu,Xinliang Zhang +2 more
TL;DR: Researchers propose a photonic method to generate microwave signals with single sideband (SSB) format, overcoming bandwidth limitations of optoelectronic devices, and demonstrate successful generation of ASK microwave signals with different frequencies and coding rates.
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