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Related papers: OLIA: an open-source digital lock-in amplifier

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Chip-based optical amplifiers can significantly expand the functionalities of photonic devices. In particular, optical-parametric amplifiers (OPAs), with engineerable gain-spectra, are well-suited for nonlinear-photonic applications.…

Open-source EDA shows promising potential in unleashing EDA innovation and lowering the cost of chip design. This paper presents an open-source EDA project, iEDA, aiming for building a basic infrastructure for EDA technology evolution and…

Vacuum conditions inside the LTP Gravitational Reference Sensor must comply with rather demanding requirements. The Optical Window (OW) is an interface which seals the vacuum enclosure and, at the same time, lets the laser beam go through…

General Relativity and Quantum Cosmology · Physics 2008-11-26 M. Nofrarias , A. F. Garcia Marin , A. Lobo , G. Heinzel , J. Ramos-Castro , J. Sanjuan , K. Danzmann

Leveraging advancements in cavity optomechanics, we explore Optomechanically Induced Transparency/Absorption (OMIT/OMIA) in the microwave domain at ambient temperature. Contrary to previous works employing cryogenic temperatures, this work…

Applied Physics · Physics 2024-03-19 Sumit Kumar , Matthew Kenworthy , Henry Ginn , Xavier Rojas

Acousto-optics imaging (AOI) is a hybrid imaging modality that is capable of mapping the light fluence rate in deep tissue by local ultrasound modulation of the diffused photons. Since the intensity of the modulated photons is relatively…

Optics · Physics 2022-03-28 Ahiad Refael Levi , Yoav Hazan , Aner Lev , Bruno Sfez , Amir Rosenthal

An ultrastable low-noise current amplifier (ULCA) is presented. The ULCA is a non-cryogenic instrument based on specially designed operational amplifiers and resistor networks. It involves two stages, the first providing a 1000-fold current…

Instrumentation and Detectors · Physics 2014-08-22 Dietmar Drung , Christian Krause , Ulrich Becker , Hansjörg Scherer , Franz Josef Ahlers

We present a thorough theoretical analysis and experimental study of the shot and electronic noise spectra of a balanced optical detector based on an operational amplifier (OA) connected in a transimpedance scheme. We identify and quantify…

Instrumentation and Detectors · Physics 2021-03-23 A. V. Masalov , A. Kuzhamuratov , A. I. Lvovsky

We propose an intuitive, simple and hardware friendly, yet surprisingly novel and efficient, received signal's angle of arrival (AoA) estimation scheme. Our intuitive, two-phases cross-correlation based scheme relies on a switched beam…

Systems and Control · Computer Science 2014-09-22 Ahmed Badawy , Tamer Khattab , Daniele Trinchero , Tarek El Fouly , Amr Mohamed

In this paper, we propose an opportunistic downlink interference alignment (ODIA) for interference-limited cellular downlink, which intelligently combines user scheduling and downlink IA techniques. The proposed ODIA not only efficiently…

Information Theory · Computer Science 2016-11-18 Hyun Jong Yang , Won-Yong Shin , Bang Chul Jung , Changho Suh , Arogyaswami Paulraj

Based on closed-form interference alignment (IA) solutions, a low overhead distributed interference alignment (LOIA) scheme is proposed in this paper for the $K$-user SISO interference channel, and extension to multiple antenna scenario is…

Information Theory · Computer Science 2011-06-29 Yanjun Ma , Jiandong Li , Rui Chen

Optical parametric amplifiers (OPAs) are promising to overcome the wavelength coverage and noise limitations in conventional optical amplifiers based on rare-earth doping and semiconductor gain. However, the high power requirement remains a…

Optics · Physics 2026-02-06 Yung-Cheng Kao , Jiaqi Huang , Ian Briggs , Pao-Kang Chen , Linran Fan

This paper proposes a new medium access control (MAC) protocol for Internet of Things (IoT) applications incorporating pure ALOHA with power domain non-orthogonal multiple access (NOMA) in which the number of transmitters are not known as a…

Signal Processing · Electrical Eng. & Systems 2018-03-28 Eren Balevi , Faeik T. Al Rabee , Richard D. Gitlin

Optical phased array (OPA) is a promising technology for compact, solid-state beam steering, with applications ranging from free-space optical communication to LiDAR. However, simultaneously achieving a large field of view (FOV), high…

Optics · Physics 2025-08-28 Yong Liu , Xiansong Meng , Hao Hu

A near threshold all-optical backaction amplifier is realized. Operating near threshold in an integrated micronscale architecture allows a nearly three orders of magnitude improvement in both gain and optical power requirements over the…

Quantum Physics · Physics 2015-05-30 Terry G. McRae , Warwick P. Bowen

Achieving broadband on-chip optical amplification spanning the visible and near-infrared (NIR) can enable diverse quantum sensing, metrology, and classical communication applications within a single unified device. However, conventional…

We present Hookpad Aria, a generative AI system designed to assist musicians in writing Western pop songs. Our system is seamlessly integrated into Hookpad, a web-based editor designed for the composition of lead sheets: symbolic music…

Sound · Computer Science 2025-02-13 Chris Donahue , Shih-Lun Wu , Yewon Kim , Dave Carlton , Ryan Miyakawa , John Thickstun

The integration of Artificial Intelligence (AI) into clinical workflows requires robust collaborative platforms that are able to bridge the gap between technical innovation and practical healthcare applications. This paper introduces MAIA…

Artificial Intelligence · Computer Science 2025-07-29 Simone Bendazzoli , Sanna Persson , Mehdi Astaraki , Sebastian Pettersson , Vitali Grozman , Rodrigo Moreno

The quantum approximate optimization algorithm (QAOA) is an approach for near-term quantum computers to potentially demonstrate computational advantage in solving combinatorial optimization problems. However, the viability of the QAOA…

Information comes in diverse modalities. Multimodal native AI models are essential to integrate real-world information and deliver comprehensive understanding. While proprietary multimodal native models exist, their lack of openness imposes…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Dongxu Li , Yudong Liu , Haoning Wu , Yue Wang , Zhiqi Shen , Bowen Qu , Xinyao Niu , Fan Zhou , Chengen Huang , Yanpeng Li , Chongyan Zhu , Xiaoyi Ren , Chao Li , Yifan Ye , Peng Liu , Lihuan Zhang , Hanshu Yan , Guoyin Wang , Bei Chen , Junnan Li

Si photonics has an immense potential for the development of compact and low-loss opto-electronic oscillators (OEO), with applications in radar and wireless communications. However, current Si OEO have shown a limited performance. Si OEO…