¶ Arm Length Stabilization
The Arm Length Stabilization system is a crucial component of the LIGO detectors, which use laser interferometry to detect gravitational waves. The system works by keeping the lengths of the interferometer's two arms precisely matched, allowing the interferometer to detect even the tiniest changes in the length of the arms caused by passing gravitational waves.
It uses a range of technologies to achieve this level of precision, including high-bandwidth actuators that apply tiny forces to the mirrors to keep the arm lengths matched, and feedback control systems that constantly monitor the arm lengths and adjust the actuators to maintain stability.
The ALS system is also designed to be highly robust, able to maintain arm length stability in the face of environmental disturbances such as seismic noise and temperature fluctuations. The system is an essential part of the LIGO detectors, allowing them to achieve their unprecedented sensitivity and detect gravitational waves from some of the most violent events in the universe.
¶ System Component
¶ Channel Name Breakdown:
| Name | Description |
|---|---|
| Channels | |
| ALS | Arm Length Stabilization |