The Laser Interferometer Gravitational-wave Observatory (LIGO) first detected cosmic gravitaional waves on September 14, 2015. We reported on it and some of the photonics instruments that helped in the seminal event. The LISA Pathfinder is the first step into a new dimension of gravitaional wave detection.
LIGO interferometric instruments directly detect cosmic gravitational waves for the first time
LIGO detects gravitational waves with help from Excelitas sensors
Laser oscillator by Coherent is at core of LIGO gravitational wave detection
CO2 laser precisely counter-heats LIGO main mirror
PG&O black glass panels reduce noise for LIGO
Wavefront sensors designed for LIGO now being used in commercial metrology
Big optical science opens up the universe at all scales: Interview with Robert Byer