Dr Chathura Bandutunga

Bandutunga , Chathura  profile
Position Fellow
Department Centre for Gravitational Astrophysics
Research group Centre for Gravitational Astrophysics
Office phone (02) 612 50332
Email
Office Physics North 1 78

Tracking noisy lasers using digitally enhanced fibre interferometers

High precision optical measurement requires the development and deployment of highly stable laser sources. The first step towards stabilising a laser is tracking and measuring it's phase noise. This project aims to develop new signal processing and optical methods to track and stabilise cheap noisy lasers for precision measurement.

Dr Chathura Bandutunga , Dr Paul Sibley, Dr Ya Zhang

Single side-band modulators for laser interferometric measurements

A topic with a short-term Engineering project and Physics project, to investigate using optical single side-band modulators for interferometric measurements.

Dr Sheon Chua, A/Prof Bram Slagmolen, Dr Chathura Bandutunga

Fibre optic sensor arrays for vibrometry and acoustic sensing

By leveraging hybrid digital-optical methods, we develop new distributed and quasi-distributed fibre-optic acoustic sensors. These acoustic sensors aim to measure vibration, strain and displacement all while localising the signal source along an optical fibre.

Dr Chathura Bandutunga , A/Prof Bram Slagmolen

Developing ultra-high resolution optical meta-surface sensors

The project aims to develop methods to improve the sensitivity of optical metasurfaces for the detection of chemical and biological markers. By tailoring a high-precision optical interferometric sensing solution to the optical properties of a metasurface under-test, the project will improve the sensitivity of these devices, developing a new range of targeted ultra-precise metasurface sensors.

Dr Chathura Bandutunga , Prof Dragomir Neshev