All-optical RF spectrum analyzer with a 5 THz bandwidth based on CMOS-compatible high-index doped silica waveguides

Y Li, Z Kang, K Zhu, S Ai, X Wang, RR Davidson… - Optics Letters, 2021‏ - opg.optica.org
We report an all-optical radio-frequency (RF) spectrum analyzer with a bandwidth greater
than 5 THz, based on a 50 cm long spiral waveguide in a CMOS-compatible high-index …

Towards an intelligent photonic system

W Zou, B Ma, S Xu, X Zou, X Wang - Science China Information Sciences, 2020‏ - Springer
The emerging intelligence technologies represented by deep learning have broadened their
applications to various fields. Beyond the conventional electronics-based processing …

Integrated group delay units for real-time reconfigurable spectrum sensing of mm-wave signals

R Das, T Schneider - Optics Letters, 2020‏ - opg.optica.org
Real-time spectrum sensing is crucial to enable dynamic spectrum sharing for ubiquitous
wireless communication with seamless high-quality wireless services. In this contribution …

Photonics-based real-time spectrogram analysis of broadband waveforms

SR Konatham, HG de Chatellus… - Journal of lightwave …, 2020‏ - opg.optica.org
This article provides a review and deeper insight on the fundamentals and main design
trade-offs of a new method for joint time-frequency analysis of broadband signals, namely …

[HTML][HTML] Slot-Waveguide Based All-Optical RF Spectrum Analyzer

Y Li, Z Kang, WL Ho, RR Davidson, BE Little, ST Chu… - Photonics, 2023‏ - mdpi.com
All-optical radio-frequency spectrum analyzers (AORFSAs) with ultrabroad bandwidth break
the electronic bottleneck and provide an efficient frequency analysis means for ultrafast …

[HTML][HTML] Simultaneous multi-channel microwave photonic signal processing

LR Chen, P Moslemi, M Ma, R Adams - Photonics, 2017‏ - mdpi.com
Microwave photonic (MWP) systems exploit the advantages of photonics, especially with
regards to ultrabroad bandwidth and adaptability, features that are significantly more …

Photonics-based real-time 2D (time-frequency) broadband signal analysis and processing

J Azaña, SR Konatham, R Maram… - … Topical Meeting on …, 2019‏ - ieeexplore.ieee.org
This contribution reviews recent work on a new universal analog-processing design for gap-
free real-time spectral analysis of broadband microwave signals, through a continuous …