Optical Analog Signal Transmission in Ambulatory ECG System

Performance evaluation of analog signal transmission in an integrated optical vortex emitter to 3.6-km few-mode fiber system.

We experimentally demonstrate and evaluate the performance of an analog signal transmission system with photonic integrated optical vortex emitter and 3.6-km few-mode fiber (FMF) link using orbital angular momentum (OAM) modes. The fabricated photonic integrated device is capable of emitting vector optical vortices carrying well-defined and quantized OAM modes with topological charge l=-2 and 2...

Low Power Adaptive Analog Front End for ECG Signal Acquisition System

A low power adaptive sampling rate ECG signal acquisition system is proposed. The system uses a capacitive coupled (CC-ECG) sensor which is easily wearable and particularly suited for long term application. An ultra-low power instrumentation amplifier with a superior noise figure followed by a filter bank extracts the desired component from the collected signals. An ultra-low power variable res...

Miniature Optical Signal Transmission System for an Active Intravascular Device

Objective: Active devices with wired receive coils enable very fast and robust catheter tracking and also intravascular imaging, but potential RF heating of such active devices has so far prevented their clinical use. Recently, a transformer-based cable was presented that efficiently reduces RF heating for active devices [1]. Similar results were obtained with an approach based on diodes [2]. W...

Ambulatory ECG Recording in Mice

Telemetric ECG recording in mice is essential to understanding the mechanisms behind arrhythmias, conduction disorders, and sudden cardiac death. Although the surface ECG is utilized for short-term measurements of waveform intervals, it is not practical for long-term studies of heart rate variability or the capture of rare episodes of arrhythmias. Implantable ECG telemeters offer the advantages...

High performance analog optical links based on quantum dot devices for UWB signal transmission