Results 81 to 90 of about 44,400 (366)

Building Scalable Silicon Microring Resonator‐Based Neuromorphic Photonic Circuits Using Post‐Fabrication Processing with Photochromic Material

Advanced Optical Materials, EarlyView.
One of the high‐impact research goals in neuromorphic photonics is to build scalable photonic artificial intelligence computing at high energy efficiency. This perspective paper discusses microring resonator (MRR)‐based large‐scale photonic neural networks, variations of MRR resonance wavelength from fabrication, and post‐fabrication processing with ...
Lei Xu, Jiawei Zhang, Eli A. Doris, Simon Bilodeau, Jesse A. Wisch, Manting Gui, Yusuf O. Jimoh, Bhavin Shastri, Barry P. Rand, Paul R. Prucnal   +9 more
wiley   +1 more source

Machine learning using convolutional neural networks for SERS analysis of biomarkers in medical diagnostics

Journal of Raman Spectroscopy, Volume 53, Issue 12, Page 2044-2057, December 2022., 2022
We compared the performances of spectral decomposition, support vector regression, random forest regression, partial least squares regression, and convolutional neural network for SERS “spectral unmixing” from a multiplexed mixture of 7 SERS‐active “nanorattles” loaded with different dyes for mRNA biomarker detection.
Joy Qiaoyi Li, Priya Vohra Dukes, Walter Lee, Michael Sarkis, Tuan Vo‐Dinh   +4 more
wiley   +1 more source

Multi-Component and Multi-Point Trace Gas Sensing in Wavelength Modulation Spectroscopy Based on Wavelength Stabilization

Photonic Sensors, 2019
Multi-component and multi-point trace gas sensing in the wavelength modulation spectroscopy is demonstrated based on the frequency-division multiplexing and time-division multiplexing technology.
Zongliang Wang, Jun Chang, Huishan Yu, Cunwei Tian, Hao Zhang, Xiukun Zhang, Longfei Tang, Qinduan Zhang, Yiwen Feng   +8 more
doaj   +1 more source

Bidirectional OFDM-WDM-PON System Employing 16-QAM Intensity Modulated OFDM Downstream and OOK Modulated Upstream [PDF]

, 2016
We have investigated an orthogonal frequency-division multiplexing (OFDM) wavelength-division-multiplexing (WDM) passive optical network (PON) with centralized lightwave and direct detection.
El-Nahal, Fady I.
core   +1 more source

Large Bidirectional Refractive Index Change in Silicon‐rich Nitride via Visible Light Trimming

Advanced Optical Materials, EarlyView.
Continuous‐wave visible light trimming of PECVD silicon‐rich nitride micro‐ring resonators enables precise, large bidirectional refractive index tuning. Resonance shifts as fine as 10 pm are achieved with a cost‐effective setup, demonstrating large red shifts of 49.1 nm and blue shifts of 10.6 nm.
Dmitrii Belogolovskii, Md Masudur Rahman, Karl Johnson, Vladimir Fedorov, Andrew Grieco, Nikola Alic, Abdoulaye Ndao, Paul K. L. Yu, Yeshaiahu Fainman   +8 more
wiley   +1 more source

A Spread-Spectrum SQUID Multiplexer [PDF]

, 2018
The Transition-Edge Sensors (TES) is a mature, high-resolution x-ray spectrometer technology that provides a much higher efficiency than dispersive spectrometers such as gratings and crystal spectrometers. As larger arrays are developed, time-division multiplexing schemes operating at MHz frequencies are being replaced by microwave SQUID multiplexers ...
arxiv   +1 more source

Over 10‐W, 2.0‐μm, Broadband, All‐Fiber Amplified Spontaneous Emission Source Based on Spectrum Combination

Advanced Photonics Research, EarlyView.
By leveraging the TDF and HDF ASE spectral‐beam combination scheme, a 2.0‐μm‐broadband fiber ASE source is obtained with a maximum output power of 10.9 W, an full width at half maximum of 67 nm, and a spectral range of 176 nm. Herein, Tm‐doped fiber (TDF) amplified spontaneous emission (ASE) and Ho‐doped fiber ASE to realize a high‐power, 2.0‐μm ...
Junjia Ding, Kehui Zhai, Deqin Ouyang, Yewang Chen, Minqiu Liu, Junqing Zhao, Xu Wu, Qitao Lue, Shuangchen Ruan, Jinzhang Wang, Chunyu Guo, Peiguang Yan   +11 more
wiley   +1 more source

A Compact Low-Power 320-Gb/s WDM Transmitter Based on Silicon Microrings

IEEE Photonics Journal, 2014
We demonstrate a compact and low-power wavelength-division multiplexing transmitter near a 1550-nm wavelength using silicon microrings. The transmitter is implemented on a silicon-on-insulator photonics platform with a compact footprint of 0.5 mm2.
Ran Ding, Yang Liu, Qi Li, Zhe Xuan, Yangjin Ma, Yisu Yang, Andy Eu-Jin Lim, Guo-Qiang Lo, Keren Bergman, Tom Baehr-Jones, Michael Hochberg   +10 more
doaj   +1 more source

Two wavelength division multiplexing WAN trials [PDF]

Digest of Papers. COMPCON'95. Technologies for the Information Superhighway, 2002
Lawrence Livermore National Laboratory, as a super-user, supercomputer, and super-application site, is anticipating the future bandwidth and protocol requirements necessary to connect to other such sites as well as to connect to remote-sited control centers and experiments.
Lennon, W. J., Thombley, R. L.
openaire   +2 more sources

High‐Fidelity Information Transmission Through the Turbulent Atmosphere Utilizing Partially Coherent Cylindrical Vector Beams

Advanced Photonics Research, EarlyView.
A novel free‐space optical communication protocol that combines the benefits of partially coherent light sources with the decoding capabilities of convolutional neural networks is proposed. This approach establishes a robust communication link that can withstand atmospheric turbulence.
Linxuan Yao, Hui Zhang, Yangsheng Yuan, Yaru Gao, Chunhao Liang, Sergey A. Ponomarenko, Yangjian Cai   +6 more
wiley   +1 more source