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Optical neural networks are at the forefront of computational innovation, utilizing photons as the primary carriers of information and employing optical components for computation. However, the fundamental nonlinear optical device in the…

We couple a double-channel imaging technique, allowing for the simultaneous acquisition of high-quality and high-resolution intensity and peak emission wavelength profiles [T. Wang and G.L. Lippi, Rev. Sci. Instr. 86, 063111 (2015)], to the…

Optics · Physics 2015-11-13 T. Wang , G. L. Lippi

Chip-scale frequency comb generators have the potential to become key building blocks of compact wavelength-division multiplexing (WDM) transceivers in future metropolitan or campus-area networks. Among the various comb generator concepts,…

We present the design and the test results of a quad-channel optical transceiver module (QTRx) possibly for future particle physics experiments. The transmitters of QTRx, each at 10 Gbps, are based on a Quad-channel VCSEL Diode array Driver…

Instrumentation and Detectors · Physics 2022-05-25 B. Deng , X. Huang , H. Sun , C. -P. Chao , S. -W. Chen , D. Gong , S. Hou , G. Huang , C. -Y. Li , C. Liu , T. Liu , Q. Sun , J. Ye , L. Zhang , W. Zhang

Next-generation (5G/6G) wireless systems demand low-power mm-wave phased-array ICs. Variable-gain LNAs (VGLNAs) are key building blocks enabling hardware complexity reduction, performance enhancement and functionality extension. This paper…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Domenico Zito , Michele Spasaro

Next-generation cellular systems require low-power mm-wave phased-array ICs. Variable-gain LNAs (VG-LNAs) are key blocks enabling reduced hardware complexity, performance improvement and added functionalities. This paper reports a low-power…

Signal Processing · Electrical Eng. & Systems 2024-06-26 M. Spasaro , D. Zito

This paper outlines an FPGA VLSI design methodology that was used to realize a fully functioning FPGA chip in 130nm CMOS with improved routability and memory robustness. The architectural design space exploration and synthesis capability…

Hardware Architecture · Computer Science 2017-12-12 Guanshun Yu , Tom Y. Cheng , Blayne Kettlewell , Harrison Liew , Mingoo Seok , Peter R. Kinget

Particle accelerators represent an indispensable tool in science and industry. However, the size and cost of conventional radio-frequency accelerators limit the utility and reach of this technology. Dielectric laser accelerators (DLAs)…

A serializer ASIC and a VCSEL driver ASIC are needed for the front-end optical data transmission in the ATLAS liquid argon calorimeter readout phase-I upgrade. The baseline ASICs are the serializer LOCx2 and the VCSEL driver LOCld, designed…

Brain-inspired computing concepts like artificial neural networks have become promising alternatives to classical von Neumann computer architectures. Photonic neural networks target the realizations of neurons, network connections and…

Emerging Technologies · Computer Science 2020-11-24 T. Heuser , M. Pflüger , I. Fischer , J. A. Lott , D. Brunner , S. Reitzenstein

Optical wireless Communication (OWC) is a strong candidate in the next generation (6G) of cellular networks. In this paper, a laser-based optical wireless network is deployed in an indoor environment using Vertical Cavity Surface Emitting…

Signal Processing · Electrical Eng. & Systems 2022-03-22 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

We present the design and test results of a novel data transmitter ASIC operating up to 20.48 Gbps with 4-level Pulse-Amplitude-Modulation (PAM4) for particle physics experiments. This ASIC, named GBS20, is fabricated in a 65 nm CMOS…

Quantum cascade laser (QCL)-pumped molecular lasers (QPMLs) have recently been introduced as a new source of powerful (>1 mW), tunable (>1 THz), narrow-band (<10 kHz), continuous-wave terahertz radiation. The performance of these lasers…

Optics · Physics 2021-08-13 Fan Wang , Steven G. Johnson , Henry O. Everitt

Charge Coupled Devices (CCDs) have been successfully used in several high energy physics experiments over the past two decades. Their high spatial resolution and thin sensitive layers make them an excellent tool for studying short-lived…

A 6bit flash-ADC with 1.2GSps, wide analog bandwidth and low power, realized in a standard digital 0.13 $\mu$m CMOS copper technology is presented. Employing capacitive interpolation gives various advantages when designing for low power: no…

Hardware Architecture · Computer Science 2011-11-09 Christoph Sandner , Martin Clara , Andreas Santner , Thomas Hartig , Franz Kuttner

The state-of-the-art CMOS technology has started to adopt three-dimensional (3D) integration approaches, enabling continuous chip density increment and performance improvement, while alleviating difficulties encountered in traditional…

We have developed a completely new type of general-purpose CCD data acquisition system which enables one to drive any type of CCD using any type of clocking mode. A CCD driver system widely used before consisted of an analog multiplexer…

Instrumentation and Detectors · Physics 2009-11-06 Emi Miyata , Chikara Natsukari , Daisuke Akutsu , Tomoyuki Kamazuka , Masaharu Nomachi , Masaharu Ozaki

The concept of capacitive coupling between sensors and readout chips is under study for the vertex detector at the proposed high-energy CLIC electron positron collider. The CLICpix Capacitively Coupled Pixel Detector (C3PD) is an active…

Instrumentation and Detectors · Physics 2017-10-06 I. Kremastiotis , R. Ballabriga , M. Campbell , D. Dannheim , A. Fiergolski , D. Hynds , S. Kulis , I. Peric

We present a 1.75-GHz self-referenceable frequency comb from a vertical external-cavity surface-emitting laser (VECSEL) passively modelocked with a semiconductor saturable absorber mirror (SESAM). The VECSEL delivers 231-fs pulses with an…

Chip-scale, high-energy optical pulse generation is becoming increasingly important as we expand activities into hard to reach areas such as space and deep ocean. Q-switching of the laser cavity is the best known technique for generating…