Access Laser and Gravitational Waves

Precision CO2 lasers made by Pacer supplier Access Laser have played a part in the recently announced confirmation of the existence of gravitational waves.

Access Laser has been collaborating with the Laser Interferometer Gravitational-Wave Observatory (LIGO) for more than 10 years. Several models of the company's stabilized lasers have been used by LIGO in the US and the European Gravitational Observatory.

Special design efforts have been made to meet the LIGO's ever-increasing demand to achieve high-stability, low-noise, and extremely sensitive operation. An auxiliary system uses a CO2 laser to heat the mirrors in a manner precise enough to counteract the shape-changes that occur as a result of heating from LIGO’s main laser. The CO2 laser that is used is an RF excited Merit-S Model CO2 laser manufactured by Access Laser Company. The laser was chosen because of its proven ability to not line hop over extended periods.

More details on Access Laser CO2 lasers can be found here