Microwave photonic frequency translators with large spurious suppression and wide bandwidth

Erwin Chan; Chongjia Huang

doi:10.1109/JPHOT.2021.3062801

Microwave photonic frequency translators with large spurious suppression and wide bandwidth

Erwin Chan, Chongjia Huang

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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Abstract

Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated microwave signal. The proposed frequency translators have a simple structure, a wide bandwidth and a large spurious signal suppression ratio. Experimental results are presented for the novel structures, which demonstrate the realisation of microwave signal frequency translation with >38 dB spurious signal suppression over a wide microwave signal frequency range of 2 to 18 GHz and with >35 dB spurious signal suppression for a translation rate of 500 Hz to 3 MHz. Frequency translation of an 80 MHz bandwidth frequency modulated continuous wave signal at 5.88 GHz frequency with >34 dB spurious signal suppression is also demonstrated.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	IEEE Photonics Journal
Volume	13
Issue number	2
DOIs	https://doi.org/10.1109/JPHOT.2021.3062801
Publication status	Published - Apr 2021

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Cite this

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title = "Microwave photonic frequency translators with large spurious suppression and wide bandwidth",

abstract = "Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated microwave signal. The proposed frequency translators have a simple structure, a wide bandwidth and a large spurious signal suppression ratio. Experimental results are presented for the novel structures, which demonstrate the realisation of microwave signal frequency translation with >38 dB spurious signal suppression over a wide microwave signal frequency range of 2 to 18 GHz and with >35 dB spurious signal suppression for a translation rate of 500 Hz to 3 MHz. Frequency translation of an 80 MHz bandwidth frequency modulated continuous wave signal at 5.88 GHz frequency with >34 dB spurious signal suppression is also demonstrated.",

keywords = "Frequency modulation, Microwave filters, microwave frequency translation, Microwave photonics, Microwave theory and techniques, Optical filters, optical modulators, Optical polarization, Optical signal processing, Radio frequency, Serrodyne modulation",

author = "Erwin Chan and Chongjia Huang",

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doi = "10.1109/JPHOT.2021.3062801",

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T1 - Microwave photonic frequency translators with large spurious suppression and wide bandwidth

AU - Chan, Erwin

AU - Huang, Chongjia

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AB - Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated microwave signal. The proposed frequency translators have a simple structure, a wide bandwidth and a large spurious signal suppression ratio. Experimental results are presented for the novel structures, which demonstrate the realisation of microwave signal frequency translation with >38 dB spurious signal suppression over a wide microwave signal frequency range of 2 to 18 GHz and with >35 dB spurious signal suppression for a translation rate of 500 Hz to 3 MHz. Frequency translation of an 80 MHz bandwidth frequency modulated continuous wave signal at 5.88 GHz frequency with >34 dB spurious signal suppression is also demonstrated.

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Microwave photonic frequency translators with large spurious suppression and wide bandwidth

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