Flying over LIGO. Author provided So, how does this work in practice? A key task is “locking” the interferometers, which means stabilising the separations between the mirrors so that the laser ...

As ground-based gravitational-wave detectors get ready to score their first direct measurement of the ripples of spacetime, thoughts turn to space-based detectors that could see all the way back ...

Optical cavities could be key to next generation interferometers Date: December 8, 2021 Source: University of Birmingham Summary: A new concept has been developed that has the potential to assist ...

Etalons are widely used in telecommunications, lasers, and spectroscopy to control and measure the wavelengths of light. Recent advances in fabrication techniques, developed by Optical Surfaces Ltd, ...