History of GEO600

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GEO Diary

Since September 1995 we are building and operating the British-German gravitational-wave detector. These pages show how GEO600 has been developing over the years. Here you find current pictures from the detector site and information from our labs.

GEO600 and KAGRA join forces for test observation run

April 2020

GEO600 and KAGRA join forces for test observation run [more]
Suspension of O3

March 2020

Suspension of O3 [more]
On April 1, 2019, both LIGO instruments, the Virgo detector, and GEO600 started their third observation run “O3” which is planned to last a full year.

April 2019 - O3 begins

On April 1, 2019, both LIGO instruments, the Virgo detector, and GEO600 started their third observation run “O3” which is planned to last a full year. [more]
GEO600 taking data simultaneously with Advanced LIGO instruments

November 2016 – Advanced LIGO detectors begin second observation run “O2”

GEO600 taking data simultaneously with Advanced LIGO instruments [more]
Signal of two merging black holes found by the twin LIGO detectors

February 2016 – direct detection of gravitational waves

Signal of two merging black holes found by the twin LIGO detectors [more]
GEO600 taking data simultaneously with advanced LIGO

September 2015 – Advanced LIGO detectors begin first observation run

GEO600 taking data simultaneously with advanced LIGO [more]
Installation of a new thermal compensation system

2014 – Towards a darker dark port

Installation of a new thermal compensation system [more]
Squeezing used continuously for one year in GEO600

2013 – one year of squeezing

Squeezing used continuously for one year in GEO600 [more]
Upgrading the modecleaner optics for higher laser power

2012 – Preparations for laser power increase

Upgrading the modecleaner optics for higher laser power [more]
Taking data together for three months

2011 – GEO600-Virgo joint run

Taking data together for three months [more]
Summer 2010: Implementation of squeezed light in GEO600

2010 – Let the squeezing begin!

Summer 2010: Implementation of squeezed light in GEO600 [more]
July 2009: Start of S6/VSR2

July 2009: Start of S6/VSR2

July 2009: Start of S6/VSR2 [more]
GEO600 to observe during LIGO upgrades

2008 – Astrowatch

GEO600 to observe during LIGO upgrades [more]
Damages at the control system, short circuits, and preparations for a maintenance period

February 2007 – repairs

Damages at the control system, short circuits, and preparations for a maintenance period [more]
GEO600 participates full time in the science run

May 2006 – GEO600 joins the S5 science run

GEO600 participates full time in the science run [more]
Science run 4: February and March, 2005.

2005 – Fourth science run

Science run 4: February and March, 2005. [more]
Improving GEO600 and preparing it for the next science run

2004 – Upgrade of the detector

Improving GEO600 and preparing it for the next science run [more]
Science run 1 and science run 3.

2003 – Two science runs

Science run 1 and science run 3. [more]
Installing the laser, the suspension system, and testing them

January/February 2001 – Optical components and their suspensions

Installing the laser, the suspension system, and testing them [more]
Installation of suspensions, testing of new control system

2000 – Installation of suspensions, testing of new control system

Installation of suspensions, testing of new control system [more]
Installation of modecleaner tank TCMa, test run of the main suspension

1999 – Hardware installations on the site

Installation of modecleaner tank TCMa, test run of the main suspension [more]
Final design review and installation of the modecleaner double pendulums, GEO600 has been registered as one of the Projects of the EXPO 2000 in Hannover

1998 – Vacuum system and EXPO 2000

Final design review and installation of the modecleaner double pendulums, GEO600 has been registered as one of the Projects of the EXPO 2000 in Hannover [more]
Welding the tubes and inserting liners, leak testing and wrapping in rock wool

1997 – Vacuum tubes and the cleanroom

Welding the tubes and inserting liners, leak testing and wrapping in rock wool [more]
Erection of buildings, ramming of the trench, installation of the rail in the trench

1996 – first buildings and the trenches

Erection of buildings, ramming of the trench, installation of the rail in the trench [more]
GEO600 Groundbreaking Party, building of the central house and the eastern end house

1995

GEO600 Groundbreaking Party, building of the central house and the eastern end house [more]
 
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