An Ultra-Fast Temporal Talbot Array Illuminator

Fernandez, Manuel P.; Kaushal, Saket; Crockett, Benjamin; Rossini, Laureano A. Bulus; Costanzo-Caso, Pablo A.; Azaña, José

doi:10.1109/jlt.2023.3247168

J. Lightwave Technol.

2023

DOI: 10.1109/jlt.2023.3247168

|View full text |Cite

An Ultra-Fast Temporal Talbot Array Illuminator

Manuel P. Fernandez

Saket Kaushal

Benjamin Crockett

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Agile manipulation of the time-frequency distribution of high-speed electromagnetic waves

Zhu,

Crockett,

Rowe

et al. 2024

Nat Commun

View full text Add to dashboard Cite

Controlling the temporal evolution of an electromagnetic (EM) wave’s frequency components, the so-called time-frequency (TF) distribution, in a versatile and real-time fashion remains very challenging, especially at the high speeds (> GHz regime) required in contemporary communication, imaging, and sensing applications. We propose a general framework for manipulating the TF properties of high-speed EM waves. Specifically, the TF distribution is continuously mapped along the time domain through phase-only processing, enabling its user-defined manipulation via widely-available temporal modulation techniques. The time-mapping operations can then be inverted to reconstruct the TF-processed signal. Using off-the-shelf telecommunication components, we demonstrate arbitrary control of the TF distribution of EM waves over a full bandwidth approaching 100 GHz with nanosecond-scale programmability and MHz-level frequency resolution. We further demonstrate applications for mitigating rapidly changing frequency interference terms and the direct synthesis of fast waveforms with customized TF distributions. The reported method represents a significant advancement in TF processing of EM waves and it fulfills the stringent requirements for many modern and emerging applications.

show abstract

Agile manipulation of the time-frequency distribution of high-speed electromagnetic waves

Zhu,

Crockett,

Rowe

et al. 2024

Nat Commun

View full text Add to dashboard Cite

show abstract

Spectral recovery of broadband waveforms via cross-phase modulation based tunable Talbot amplifier

Li,

Xie,

Zhang

et al. 2024

Opt. Express

View full text Add to dashboard Cite

Physical processes in the Fourier domain play a crucial role in various applications such as spectroscopy, quantum technology, ranging, radio-astronomy, and telecommunications. However, the presence of stochastic noise poses a significant challenge in the detection of broadband spectral waveforms, especially those with limited power. In this study, we propose and experimentally demonstrate a cross-phase modulation (XPM) based spectral Talbot amplifier to recover the broadband spectral waveforms in high fidelity. Through the combination of spectral phase filtering and XPM nonlinear effect in an all-fiber configuration, we demonstrate spectral purification of THz-bandwidth spectral waveforms submerged in strong noise. The proposed spectral Talbot amplifier provides tunable amplification factors from 3 to 10, achieved by flexible control on the temporal waveform of the pump and the net dispersion. We demonstrate up to 10-dB remarkable improvement on optical signal-to-noise ratio (OSNR) while preserving the spectral envelope. Furthermore, our system allows frequency-selective reconstruction of noisy input spectra, introducing a new level of flexibility for spectral recovery and information extraction. We also evaluate numerically the impact of pump intensity deviation on the reconstructed spectral waveforms. Our all-optical approach presents a powerful means for effective recovery of broadband spectral waveforms, enabling information extraction from a noise-buried background.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

An Ultra-Fast Temporal Talbot Array Illuminator

Cited by 2 publications

References 52 publications

Agile manipulation of the time-frequency distribution of high-speed electromagnetic waves

Agile manipulation of the time-frequency distribution of high-speed electromagnetic waves

Spectral recovery of broadband waveforms via cross-phase modulation based tunable Talbot amplifier

Contact Info

Product

Resources

About