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LIGO-Virgo in OPN

The search for gravitational waves has come a long way since the 11 February 2016 announcement that they had been detected by the Laser Interferometer Gravitational-wave Observatory (LIGO). Here, we’ve listed some of OPN’s coverage; we’ll continue to add material to the list as new stories develop.

Low-Noise Optical Coatings Could Swell LIGO’s Reach (OPN News, 3 October 2021)
Fresh from a round of sensitivity improvements, the souped-up laser interferometers begin their third observation run scanning the skies for gravitational waves.

Quantum Cooling on a Grand Scale (OPN News, 21 June 2021)
Researchers use LIGO’s ultra-precise lasers and careful back-action damping to cool a massive object—a 10-kg mechanical oscillator—to near its quantum ground state.

Sensitivity Through Squeezing (OPN News, 16 September 2020)
OPN talks with Nergis Mavalvala, whose FIO+LS plenary talk recounted some amazing recent improvements to the LIGO and Virgo laser-interferometer gravitational-wave observatories.

Squeezing the Best Out of Gravitational Waves (OPN News, 6 May 2020)
Optical cavities could allow the world’s leading observatories to reduce noise at low frequencies, as well as high.

Squeezed States Expand Horizons for LIGO and Virgo (OPN News, 6 December 2019)
The behemoth gravitational-wave observatories report on their progress hammering down quantum noise–—and extending their reach.

LIGO and Virgo Open a New Hunting Season (OPN News, 1 April 2019)
Fresh from a round of sensitivity improvements, the souped-up laser interferometers begin their third observation run scanning the skies for gravitational waves.

Gravitational Waves: The Road Ahead (OPN Feature, March 2018)
LIGO and Virgo have opened up a new window into the local universe. But the global gravitational-wave community isn’t stopping there.

Multi-Messenger Astronomy Gets Real (OPN News, 16 October 2017)
With the first detection of both gravitational and electromagnetic radiation from a single cosmic event, a new era of sky observation officially begins.

Three LIGO Pioneers Take Nobel Physics Prize (OPN News, 03 October 2017)
Trio is cited “for decisive contributions to the LIGO detector and the observation of gravitational waves.”

Under the Hood with LIGO’s Lasers (OPN News, 02 October 2017)
At the OSA Laser Congress in Japan, Robert Byer looked at the genesis of the lasers that form the heart of Advanced LIGO—and hinted at big finds ahead.

LIGO and Virgo Produce First Joint Result (OPN News, 28 September 2017)
Addition of a third detector dramatically improves ability to localize sources, and adds data from gravitational-wave polarization.

Another Day, Another Gravitational Wave (OPN News, 1 June 2017)
After sensitivity enhancements, LIGO records third observation since late 2015—and scientists look ahead to a time when such observations could be a daily event.

Q&A with 2017 CLEO Plenary Speakers (OPN Conversations, May 2017)
OSA Fellow Nergis Mavalvala talked with OPN about LIGO’s exquisitely sensitive technology.

Next-Gen Gravitational-Wave Detector Passes a Key Test (OPN News, 7 June 2016)
ESA spacecraft lays important, and impressive, technical groundwork for space-based observatory targeted for 2034.

LIGO’s Next Steps (OPN News, 13 March 2016)
A conversation with OSA Fellow Stanley Whitcomb, chief scientist with the LIGO Scientific Collaboration.

A Green Light for LIGO-India (OPN News, 22 February 2016)
Indian Cabinet provides in-principle nod to new gravitational-wave observatory, to come on line in the next decade.

LIGO’s Payoff (OPN News, 11 February 2016)
The laser-enabled gravitational-wave observatory provides a stunning result—and a potential new window on the universe.

LIGO: Finally Poised to Catch Elusive Gravitational Waves? (OPN Feature, March 2015)
LIGO’s Thomas Carruthers and David Reitze offer a pre-launch update on the observatory’s seven-year upgrade project incorporating cutting-edge lasers and optics.

The Laser Interferometer Gravitational-Wave Observatory (LIGO) (OPN Feature, July 1995)
A review of the first LIGO, its purpose, and its promise, by R.E. Spero and S.E. Whitcomb.

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