Terminology and Acronyms
Meaning |
Japan |
LIGO |
Differential arm length |
L- |
DARM(ダーム) |
Common arm length |
L+ |
CARM(カーム) |
Michelson DOF |
l- |
MICH(ミッチ) |
Power recycling cavity length |
l+ |
PRCL(パークル) |
Signal recycling cavity length |
ls |
SRCL(サークル) |
The arm in line with the incident beam |
Inline-arm |
X-arm |
The arm perpendicular to the incident beam |
Perpendicular-arm |
Y-arm |
Output port of the interferometer where the carrier is dark |
Dark Port, DP |
Anti Symmetric Port, AS, AP |
The light returning to the laser |
Bright Port, BP |
Symmetric Port, SP, Reflection Port, REFL |
Length Sensing and Control |
長さ制御 |
LSC |
Alignment Sensing and Control |
アラインメント制御 |
ASC |
Input mirrors of the arm cavities |
Front Mirror, Near Mirror, NM |
Input Test Mass, ITM |
End mirrors of the arm cavities |
End Mirror, EM |
End Test Mass, ETM |