Performance of chip-scale optical frequency comb generators in coherent WDM communications

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For the EU DEMO conductor testing, a temperature sensor based on Fiber Bragg Grating (FBG) optical fiber is studied at the EPFL Swiss Plasma Center. The SULTAN test facility has been upgraded to use fiber optic sensor for temperature monitoring and quench ...

This article proposes a new two-wired amplifying active electrode (AE), presenting a high input impedance and a high common-mode rejection ratio (CMRR). In the proposed structure, the input impedance and the CMRR of the system are considerably increased by ...

Parametric amplifiers play a crucial role in modern quantum technology by enabling the enhancement of weak signals with minimal added noise. Traditionally, Josephson junctions have been the primary choice for constructing parametric amplifiers. Nevertheles ...

We demonstrate the first EDWA-enabled Terabit-class coherent optical communication with 1.6-Tb/s net bit rate per channel and 16 -channel WDM transmission over 81 -km fiber, proving the potential of such on-chip amplification for future coherent applicatio ...

In this article, we consider decentralized optimization problems where agents have individual cost functions to minimize subject to subspace constraints that require the minimizers across the network to lie in low-dimensional subspaces. This constrained fo ...

Photonic integrated circuits (PICs) are the subject of massive interest due to the range of applications they can provide at a huge scale while building on well-established CMOS technologies. One of the critical parameters defining a technology's maturity ...

The millimeter wave (mmWave) frequency band is becoming very interesting over the past years because it provides the opportunity to operate using large bandwidths which are not available at lower frequencies. This enables new communication standards suppor ...

Orbital angular momentum (OAM) spectrum diagnosis is a fundamental building block for diverse OAM-based systems. Among others, the simple on-axis interferometric measurement can retrieve the amplitude and phase information of complex OAM spectra in a few s ...

An important advantage of optical signal processing is the possibility of performing various operations in parallel. Among the techniques proposed for parallel optical signal processing, frequency division multiplexing (FDM) is a well-known approach, in wh ...

Humidity is a critical environmental factor in various applications, and its temperature dependence must be considered when developing thermo-hygrometer fiber sensors. The optical fibers that constitute the sensor must have a temperature reference, which s ...

Previously, space-time wave packets (STWPs) have been gen-erated in free space with reduced diffraction and a tunable group velocity by combining multiple frequency comb lines each carrying a single Bessel mode with a unique wave num-ber. It might be poten ...

Microchannel plates fabricated from hydrogenated amorphous silicon (AMCPs) are a promising alternative to conventional lead glass microchannel plates. Their main advantages lie in their cheaper and more flexible fabrication processes, allowing for adaptabl ...

Silicon photonics has emerged as a mature technology that is expected to play a key role in critical emerging applications, including very high data rate optical communications, distance sensing for autonomous vehicles, photonic-accelerated computing, and ...

Fields of technology as diverse as microwave filter construction, characterization of material interfaces with atomic precision, and detection of gravitational waves from astronomical sources employ mechanical resonators at their core. The utility of mecha ...

The backscattering process in hollow core fibres shows a large similarity with Rayleigh scattering, offering the potential to be exploited for distributed sensing. A classical Φ-OTDR implementation is used to observe the backscattering signal from the surf ...

Remote photoplethysmography (rPPG) using camera-based imaging has shown excellent potential recently in vital signs monitoring due to its contactless nature. However, the optimum filter selection for pre-processing rPPG data in signal conditioning is still ...

Although graphene has met many of its initially predicted optoelectronic, thermal, and mechanical properties, photodetectors with large spectral bandwidths and extremely high frequency responses remain outstanding. In this work, we demonstrate a >500 gigah ...

Integrated microring resonators are well suited for wavelength-filtering applications in optical signal processing, and cascaded microring resonators allow flexible filter design in coupledresonator optical waveguide (CROW) configurations. However, the imp ...

This thesis explores the application of recent advances in integrated photonics to the field of light detection and ranging (LiDAR). The progress in photonic integration allows for unprecedented levels of light manipulation on micrometer scales through the ...

The nitrogen-vacancy (NV) center in diamond is a powerful and versatile quantum sensor for diverse quantities. In particular, relaxometry (or T1), can be used to detect magnetic noise at the nanoscale. For experiments with single NV centers the analysis of ...

Performance of chip-scale optical frequency comb generators in coherent WDM communications

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Quench Detection and Temperature Measurement With Fiber Optic Sensors

A Two-Wired High Input Impedance and High CMRR Active Electrode Insensitive to Component Mismatch

Three-wave-mixing quantum-limited kinetic inductance parametric amplifier operating at 6 T near 1 K

First Demonstration of Erbium -Doped Waveguide Amplifier Enabled Multi-Tb/s (16x1.6T) Coherent Transmission

Quantization for Decentralized Learning Under Subspace Constraints

Linear and nonlinear applications of miniaturized silicon nitride microresonators

Ultra-Low Power Short-Range 60-GHz FMCW Radar Front-End

Single-shot Kramers-Kronig complex orbital angular momentum spectrum retrieval

Topological MIMO Optical Signal Processing

Humidity-insensitive optical fibers for distributed sensing applications

Space-time wave packets with reduced divergence and tunable group velocity generated in free space after multi-mode fiber propagation

Amorphous Silicon Based Microchannel Plates for Time-of-Flight Positron Emission Tomography

Integrated silicon photonic MEMS

Nanomechanical resonators with low dissipation for quantum optomechanics

Study on the possibility of Φ-OTDR sensing in hollow-core fibres

Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning

Metamaterial graphene photodetector with bandwidth exceeding 500 gigahertz

Fully reconfigurable MEMS-based second-order coupled-resonator optical waveguide (CROW) with ultra-low tuning energy

Nonlinear Integrated Photonics for Ranging Applications

Optimizing Data Processing for Nanodiamond Based Relaxometry