Advances in cost-effective integrated spectrometers

A Li, C Yao, J Xia, H Wang, Q Cheng, R Penty… - Light: Science & …, 2022 - nature.com
The proliferation of Internet-of-Things has promoted a wide variety of emerging applications
that require compact, lightweight, and low-cost optical spectrometers. While substantial …

422 Million intrinsic quality factor planar integrated all-waveguide resonator with sub-MHz linewidth

MW Puckett, K Liu, N Chauhan, Q Zhao, N Jin… - Nature …, 2021 - nature.com
High quality-factor (Q) optical resonators are a key component for ultra-narrow linewidth
lasers, frequency stabilization, precision spectroscopy and quantum applications. Integration …

Ultra-smooth silicon nitride waveguides based on the Damascene reflow process: fabrication and loss origins

MHP Pfeiffer, J Liu, AS Raja, T Morais, B Ghadiani… - Optica, 2018 - opg.optica.org
On-chip optical waveguides with low propagation losses and precisely engineered group
velocity dispersion are important to nonlinear photonic devices such as soliton microcombs …

Photonic neural networks based on integrated silicon microresonators

S Biasi, G Donati, A Lugnan, M Mancinelli… - Intelligent …, 2024 - spj.science.org
Recent progress in artificial intelligence (AI) has boosted the computational possibilities in
fields in which standard computers are not able to perform adequately. The AI paradigm is to …

A continuously tunable sub-gigahertz microwave photonic bandpass filter based on an ultra-high-Q silicon microring resonator

H Qiu, F Zhou, J Qie, Y Yao, X Hu, Y Zhang… - Journal of Lightwave …, 2018 - opg.optica.org
Microwave photonic filter (MPF) is one of the key fundamental subsystems in microwave
photonics, and it shows great potentiality in numbers of applications such as optoelectronic …

A topological photonic ring-resonator for on-chip channel filters

L Gu, Q Yuan, Q Zhao, Y Ji, Z Liu… - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
A topologically protected ring-resonator formed in valley photonic crystals is proposed and
fabricated on a silicon slab. The unidirectional transmission and robustness against …

Design space exploration of microring resonators in silicon photonic interconnects: impact of the ring curvature

M Bahadori, M Nikdast, S Rumley, LY Dai… - Journal of lightwave …, 2018 - opg.optica.org
A detailed analysis of fundamental tradeoffs between ring radius and coupling gap size is
presented to draw realistic borders of the possible design space for microring resonators …

On-chip spectrometers using stratified waveguide filters

A Li, Y Fainman - Nature communications, 2021 - nature.com
We present an ultra-compact single-shot spectrometer on silicon platform for sparse
spectrum reconstruction. It consists of 32 stratified waveguide filters (SWFs) with diverse …

Gigahertz phononic integrated circuits on thin-film lithium niobate on sapphire

FM Mayor, W Jiang, CJ Sarabalis, TP McKenna… - Physical Review …, 2021 - APS
Acoustic devices play an important role in classical information processing. The slower
speed and lower losses of mechanical waves enable compact and efficient elements for …

Widely tunable and narrow-linewidth hybrid-integrated diode laser at 637 nm

LV Winkler, K Gerritsma, A van Rees, PPJ Schrinner… - Optics express, 2024 - opg.optica.org
We present hybrid-integrated extended cavity diode lasers tunable around 637 nm, with a
gain-wide spectral coverage of 8 nm. This tuning range addresses the zero-phonon line of …