16–20 Oct 2023
Kingscliff, NSW, Australia
Australia/Sydney timezone

Lower Laser Noise with Multi-Higher Order Mode Locking to Re-duced Brownian Thermal Noise

Not scheduled
20m
Kingscliff, NSW, Australia

Kingscliff, NSW, Australia

Mantra on Salt Beach Kingscliff, Tweed Coast Gunnamatta Avenue, Kingscliff NSW
Invited Poster Molecular, Atomic, Ion and Nuclear Clocks

Speaker

Andrew Wade (The Australian National University)

Description

We will outline a new approach to mitigating fundamental Brownian coating thermal noise in optical cavities using multiple higher order TEM gaussian modes [4]. By blending the readout signals of mul-tiple higher order modes, the effective sampling area of mirrors increases. This improves the averag-ing of thermal motion, thereby lowering the overall length noise. Reducing or mitigating this fundamental thermodynamic bound is an important area of research for the science of precision measurement and optical time standards.

Primary author

Andrew Wade (The Australian National University)

Co-authors

Namisha Chabbra (The Australian National University) Dr Jue Zhang (The Australian National University) Kirk McKenzie (The Australian National University)

Presentation materials