Journal ArticleDOI
All-Fiber Ultrawideband Pulse Generation Based on Spectral Shaping and Dispersion-Induced Frequency-to-Time Conversion
Chao Wang,Fei Zeng,Jianping Yao +2 more
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In this paper, an approach to generating and distributing ultrawideband (UWB) pulses based on optical spectral shaping and frequency-to-time conversion using all-fiber components is proposed and demonstrated.Abstract:
An approach to generating and distributing ultrawideband (UWB) pulses based on optical spectral shaping and frequency-to-time conversion using all-fiber components is proposed and demonstrated. In the system, the spectrum of an ultrashort pulse from a mode-locked fiber laser is spectrally shaped by an all-fiber spectrum shaper, to produce a monocycle- or a doublet-shaped power spectrum. Thanks to the frequency-to-time conversion in a dispersive fiber, time-domain optical pulses exhibiting the user-defined shape of the optical power spectrum are obtained. Experiments based on the proposed approach are carried out. UWB monocycle or doublet pulses are generatedread more
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Journal ArticleDOI
Photonic Generation of Ultrawideband Signals
Jianping Yao,Fei Zeng,Qing Wang +2 more
TL;DR: In this paper, the authors discuss the convergence of UWB and optical fiber distribution techniques, or UWB over fiber, offers the availability of undisrupted service across different networks and eventually achieves high data-rate access at any time and from any place.
Journal ArticleDOI
Chirped Microwave Pulse Generation Based on Optical Spectral Shaping and Wavelength-to-Time Mapping Using a Sagnac Loop Mirror Incorporating a Chirped Fiber Bragg Grating
Chao Wang,Jianping Yao +1 more
TL;DR: In this article, an approach to optically generating chirped microwave pulses with tunable chirp profile based on optical spectral shaping using a Sagnac loop filter incorporating a Chirped fiber Bragg grating (CFBG) and linear wavelength-to-time mapping in a dispersive element is presented.
Journal ArticleDOI
UWB-Over-Fiber Communications: Modulation and Transmission
Shilong Pan,Jianping Yao +1 more
TL;DR: In this article, the authors performed a comprehensive investigation of techniques to implement on-off keying (OOK), bi-phase modulation (BPM), pulse-amplitude modulation (PAM), pulse shape modulation (PSM), and PPM based on a phase modulator and an asymmetric Mach-Zehnder interferometer.
Journal ArticleDOI
Photonics for ultrawideband communications
TL;DR: The applications of ultrawideband frequency technology especially in broadband indoor wireless communication and the different techniques for generating and encoding impulse UWB signals in the optical domain was discussed.
References
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Journal ArticleDOI
Ultra-wideband radio technology: potential and challenges ahead
D. Porcino,W. Hirt +1 more
TL;DR: The application potential and technical challenges presented by UWB radio as an unconventional but promising new wireless technology are discussed, with the potential to provide solutions for many of today's problems in the areas of spectrum management and radio system engineering.
Journal ArticleDOI
Ultra-wideband wireless systems
G.R. Aiello,G.D. Rogerson +1 more
TL;DR: In this article, two UWB multiband systems, frequency hopping and Spectral Keying, have been described, both of which meet the stringent requirements provided by IEEE 802.15.3a.
Book
Ultra-wideband signals and systems in communication engineering
TL;DR: This chapter discusses the development of UWB signals and systems, and proposes proposals for UWB channel models and methods, as well as some of the challenges faced by the system and its users.
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