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Single-modulator Based Multi-Format Switchable Signal Generator Without Background Noise
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DOI：10.1109/JLT.2022.3164413.png)
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Abstract
En 中文
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.
Keywords:
Frequency shift keying
Microwave filters
Microwave photonics
Optical filters
Modulation
Amplitude shift keying
Optical switches
Amplitude shift keying
background-free
frequency-shift keying
phase shift keying
signal generation
Journal
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4.8
Papers:
1.7W
Citations:
3.8W
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