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Photonic Generation of Highly-Linear Ultra-Wideband Stepped-Frequency Microwave Signals With Up to 6·106 Time-Bandwidth Product

A photonic-based technique for the generation of highly-linear ultra-wideband stepped-frequency microwave signals with large time-bandwidth product is proposed and experimentally demonstrated. The double-gated recirculating frequency-shifting optical fiber loop enables the frequency of the generated microwave signal to hop step-wisely at exact increment. The generation of signals with up to 20 GHz bandwidth and ∼300 μs temporal duration, corresponding to a time-bandwidth product of 6·10 6 , is achieved by the proof-of-concept system with electronics of only up to 80 MHz bandwidth. Nonlinearity of less than 10− 7 and high intra- and inter-period coherence are also experimentally validated. This work provides applications such as high resolution radar with a promising low-cost solution for generating large time-bandwidth product waveforms with frequency scalability and extreme linearity.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.40 No.4 February 15 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 1036-1042

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

MICROWAVE PHOTONICS
LINEAR STEPPED-FREQUENCY
ULTRA-WIDEBAND WAVEFORM GENERATION

Info Detail Spesifik

10.1109/JLT.2021.3127949

Pernyataan Tanggungjawab

Yujie Lyu, Yihan Li, Chunlong Yu, Li Yi, Tadao Nagatsuma, et al.

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