Access Laser at LIGO

Noble Prize In Physics Deservedly Split Among MIT & CIT Professors

  • October 3, 2017

The Noble Prize in physics has been awarded to three American researchers whose contributions to the LIGO project resulted in the discovery of gravitational waves; a key validation of Einstein’s theory of general relativity.

For the full article from The New York Times:

https://www.nytimes.com/2017/10/03/science/nobel-prize-physics.html

VIRGO Joins The Fun As First European Measurement Confirmed

  • September 27, 2017

The European gravitational wave observatory, VIRGO, has joined in on the fun by detecting a gravitational wave in parallel with the American research groups of LIGO. This represents a significant breakthrough in the ability of scientists to triangulate where in the nights sky these events originate providing further data and intrigue.

For the full article from The Verge:

https://www.theverge.com/2017/9/27/16368860/gravitational-waves-ligo-virgo-three-observatories-fourth-detection

Gravitational Waves Detected for a Second Time

  • June 16, 2016

LIGO detects gravitational waves for a second time, the result of two black holes colliding 1.4 billion light years away to form a single black hole 21 times the mass of the sun.

For the full article from Laser Focus World:

http://www.laserfocusworld.com/articles/2016/06/ligo-detects-gravitational-waves-again.html?cmpid=LFWDetectorsImaging06162016&eid=291923782&bid=1435357

Gravitational Waves Exit Theory With Experimental Success

  • February 16, 2016

Access Laser has been collaborating with the Laser Interferometer Gravitational-Wave Observatory (LIGO) for more than 10 years.  Several models of our stabilized lasers have been used by LIGO in the US and the European Gravitational Observatory.  Special design efforts have been made along the way to meet the ever-increasing demand to achieve high-stability, low-noise, and extremely sensitive operation of the LIGO.  We are grateful for the opportunity to contribute to the detection of gravitational waves, and we are proud of the LIGO team!

“….. 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 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….”

For more information about LIGO and the history making discovery visit:

https://www.ligo.caltech.edu/news/ligo20160211

https://www.ligo.caltech.edu/news/ligo20160404

Acknowledgement: