Technical details

Technical details

of the GEO600 gravitational-wave detector

GEO600 Specifications

Parameter
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