Phase Noise Modeling of Opto-Mechanical Oscillators

TL;DR

This paper develops a precise phase noise model for radiation pressure driven opto-mechanical oscillators, matching experimental data and enabling low phase noise in coupled resonator arrays.

Contribution

It introduces a new accurate phase noise model for opto-mechanical oscillators and demonstrates its application to achieve low phase noise in coupled resonator arrays.

Findings

Model accurately matches published phase noise data.

Achieves phase noise as low as -80 dBc/Hz at 1 kHz offset.

Demonstrates potential for low-noise opto-mechanical oscillators.

Abstract

We build upon and derive a precise far from carrier phase noise model for radiation pressure driven opto-mechanical oscillators and show that calculations based on our model accurately match published phase noise data for such oscillators. Furthermore, we derive insights based on the equations presented and calculate phase noise for an array of coupled disk resonators, showing that it is possible to achieve phase noise as low as -80 dBc/Hz at 1 kHz offset for a 54 MHz opto-mechanical oscillator.