Technical details

Technical details

of the GEO600 gravitational-wave detector

GEO600 Specifications

Value
Arm length 2 x 600 m
Orientation NNW and ENE
Tube diameter 60 cm
Laser type Diode-pumped Nd:YAG laser at 1064 nm
Laser power 30 W single mode at 1064 nm
Power recycling factor 1000
Optics 18 cm diameter fused-silica mirrors and 26 cm beam splitter
Signal recycling factor 10
Frequency range 50 Hz to 6 kHz
Vacuum pressure ~ 10 -8  mbar
Sensitivity depending on bandwidth:
h ~ 10 -20  to 10 -21  (for bursts)
h ~ 10 -26  (for cw signals and 1 yr integration time)

Technology spotlights

Go to Editor View