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Tunable narrowband microwave photonic filter created by stimulated Brillouin scattering from a silicon nanowire.

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TLDR
This work uses only 1 dB of on-chip stimulated Brillouin scattering gain to create an RF photonic notch filter with 48 dB of suppression, 98 MHz linewidth, and 6 GHz frequency tuning, and establishes the foundation for the first CMOS-compatible high-performance RFPhotonic filter.
Abstract
We demonstrate the first, to the best of our knowledge, functional signal processing device based on stimulated Brillouin scattering in a silicon nanowire. We use only 1 dB of on-chip stimulated Brillouin scattering gain to create an RF photonic notch filter with 48 dB of suppression, 98 MHz linewidth, and 6 GHz frequency tuning. This device has potential applications in on-chip microwave signal processing and establishes the foundation for the first CMOS-compatible high-performance RF photonic filter.

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Citations
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Journal ArticleDOI

Controlling phonons and photons at the wavelength scale: integrated photonics meets integrated phononics

TL;DR: In this article, the state of the art in nanoscale electro-and optomechanical systems with a focus on scalable platforms such as silicon is summarized and perspectives on what these new systems may bring and what challenges they face in the coming years.
Journal ArticleDOI

Compact Brillouin devices through hybrid integration on silicon

TL;DR: In this paper, a ring resonator with free spectral range precisely matched to the Brillouin shift was fabricated to enable the first demonstration of lasing in a planar integrated circuit.
Journal ArticleDOI

Advanced Integrated Microwave Signal Processing With Giant On-Chip Brillouin Gain

TL;DR: Wide ranges of functionalities made possible by the breakthrough on-chip gain makes Brillouin-based microwave photonic signal processing a promising approach for real-world implementation in the near future.
Journal ArticleDOI

Brillouin scattering self-cancellation

TL;DR: The perfect cancellation of Brillouin scattering arising from Rayleigh acoustic waves is experimentally demonstrated by engineering a silica nanowire with exactly opposing photo-elastic and moving-boundary effects.
Journal ArticleDOI

A Continuously Tunable Sub-Gigahertz Microwave Photonic Bandpass Filter Based on an Ultra-High-Q Silicon Microring Resonator

TL;DR: In this article, a tunable sub-gigahertz bandwidth MPF based on an ultrahigh quality factor silicon microring resonator is proposed and experimentally demonstrated, where a full width at half-maximum bandwidth of 170 MHz is achieved thanks to the ultrahigh total quality factor as 1.14 × 106.
References
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Journal ArticleDOI

Recent progress in Brillouin scattering based fiber sensors.

TL;DR: The progress on improving sensing performance parameters like spatial resolution, sensing length limitation and simultaneous temperature and strain measurement is reviewed.
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Slow and fast light in optical fibres

TL;DR: In this article, the authors present the state-of-the-art research in this fascinating field and possible outcomes in the near future, as well as a review of the current state of the art in this field.
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Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides

TL;DR: Experiments show that radiation pressures, produced by subwavelength modal confinement, yield enhancement of Brillouin nonlinearity beyond those of material non linearity alone, which paves the way towards the hybridization of silicon photonics, microelectromechanical systems and CMOS signal-processing technologies on chip.
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Narrow-linewidth stimulated Brillouin fiber laser and applications

TL;DR: A stimulated Brillouin fiber ring laser with a spectral width of 2 kHz and an intrinsic linewidth of less than 30 Hz has been demonstrated, and applications of such a laser include laser linewsidth narrowing, microwave frequency generation, high-rate amplitude modulation, and optical inertial rotation sensing.
Journal ArticleDOI

Low-power, chip-based stimulated Brillouin scattering microwave photonic filter with ultrahigh selectivity

TL;DR: In this paper, a chip-based MWP bandstop filter with ultrahigh suppression, high resolution in the megahertz range, and 0-30 GHz frequency tuning is presented. But the performance is limited by trade-offs between key parameters such as tuning range, resolution, and suppression.
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