Photonic chirped radio-frequency generator with ultra-fast sweeping rate and ultra-wide sweeping range

Jhih Min Wun; Chia Chien Wei; Jyehong Chen; Chee Seong Goh; S. Y. Set; Jin Wei Shi

doi:10.1364/OE.21.011475

Photonic chirped radio-frequency generator with ultra-fast sweeping rate and ultra-wide sweeping range

Jhih Min Wun, Chia Chien Wei, Jyehong Chen, Chee Seong Goh, S. Y. Set, Jin Wei Shi

Department of Photonics

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

68 Scopus citations

Abstract

A high-performance photonic sweeping-frequency (chirped) radio-frequency (RF) generator has been demonstrated. By use of a novel wavelength sweeping distributed-feedback (DFB) laser, which is operated based on the linewidth enhancement effect, a fixed wavelength narrow-linewidth DFB laser, and a wideband (dc to 50 GHz) photodiode module for the hetero-dyne beating RF signal generation, a very clear chirped RF waveform can be captured by a fast real-time scope. A very-high frequency sweeping rate (10.3 GHz/μs) with an ultra-wide RF frequency sweeping range (∼40 GHz) have been demonstrated. The high-repeatability (∼97%) in sweeping frequency has been verified by analyzing tens of repetitive chirped waveforms.

Original language	English
Pages (from-to)	11475-11481
Number of pages	7
Journal	Optics Express
Volume	21
Issue number	9
DOIs	https://doi.org/10.1364/OE.21.011475
State	Published - 6 May 2013

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title = "Photonic chirped radio-frequency generator with ultra-fast sweeping rate and ultra-wide sweeping range",

abstract = "A high-performance photonic sweeping-frequency (chirped) radio-frequency (RF) generator has been demonstrated. By use of a novel wavelength sweeping distributed-feedback (DFB) laser, which is operated based on the linewidth enhancement effect, a fixed wavelength narrow-linewidth DFB laser, and a wideband (dc to 50 GHz) photodiode module for the hetero-dyne beating RF signal generation, a very clear chirped RF waveform can be captured by a fast real-time scope. A very-high frequency sweeping rate (10.3 GHz/μs) with an ultra-wide RF frequency sweeping range (∼40 GHz) have been demonstrated. The high-repeatability (∼97%) in sweeping frequency has been verified by analyzing tens of repetitive chirped waveforms.",

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doi = "10.1364/OE.21.011475",

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AU - Wun, Jhih Min

AU - Wei, Chia Chien

AU - Chen, Jyehong

AU - Goh, Chee Seong

AU - Set, S. Y.

AU - Shi, Jin Wei

PY - 2013/5/6

Y1 - 2013/5/6

N2 - A high-performance photonic sweeping-frequency (chirped) radio-frequency (RF) generator has been demonstrated. By use of a novel wavelength sweeping distributed-feedback (DFB) laser, which is operated based on the linewidth enhancement effect, a fixed wavelength narrow-linewidth DFB laser, and a wideband (dc to 50 GHz) photodiode module for the hetero-dyne beating RF signal generation, a very clear chirped RF waveform can be captured by a fast real-time scope. A very-high frequency sweeping rate (10.3 GHz/μs) with an ultra-wide RF frequency sweeping range (∼40 GHz) have been demonstrated. The high-repeatability (∼97%) in sweeping frequency has been verified by analyzing tens of repetitive chirped waveforms.

AB - A high-performance photonic sweeping-frequency (chirped) radio-frequency (RF) generator has been demonstrated. By use of a novel wavelength sweeping distributed-feedback (DFB) laser, which is operated based on the linewidth enhancement effect, a fixed wavelength narrow-linewidth DFB laser, and a wideband (dc to 50 GHz) photodiode module for the hetero-dyne beating RF signal generation, a very clear chirped RF waveform can be captured by a fast real-time scope. A very-high frequency sweeping rate (10.3 GHz/μs) with an ultra-wide RF frequency sweeping range (∼40 GHz) have been demonstrated. The high-repeatability (∼97%) in sweeping frequency has been verified by analyzing tens of repetitive chirped waveforms.

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Photonic chirped radio-frequency generator with ultra-fast sweeping rate and ultra-wide sweeping range

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