The Control of the Oscillation Threshold with Asymmetric Gain in Operational Amplifiers
Sungmook Kang, Heeso Noh
TL;DR
This paper investigates how applying asymmetric gain in coupled operational amplifiers can control oscillation thresholds, drawing analogies from laser physics and observing the quenching of oscillations at exceptional points.
Contribution
It introduces a novel method of controlling oscillation thresholds in electronic circuits using asymmetric gain, inspired by laser exceptional point phenomena.
Findings
Oscillation stops at the exceptional point with asymmetric gain.
The phenomenon is both experimentally observed and theoretically analyzed.
Analogies between laser and electronic oscillator behaviors are established.
Abstract
We have observed the quench of the lasing at the exceptional point in the electronic circuit system by applying asymmetric gain in the coupled oscillator. Since there is the analogy between oscillation in laser and oscilation in the operational amplifier, when the system hits the exceptional point, oscillation stops. This phenomenon is also theoretically investigated.
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