Modifications to the common mode boards
- Document #:
- LIGO-E1200907-v1
- Document type:
- E - Engineering documents
Other Versions:
- Abstract:
- As a result of the one arm test a number of changes need to be propagated to all other ALS end station boards. The modifications affect the transfer functions for the laser locking and the cavity locking. It adds low pass filtering to suppress PZT resonances and it fixes a gain in the slow controls readback. As a consequence the previously identical ALS boards are now split into two types: LL (laser locking) and ALS (cavity locking).
- Files in Document:
-
- E1200907-v1.pdf (49.5 kB)
- Other Files:
- E1200907-v1.docx (183.7 kB)
- Topics:
- Authors:
- Related Documents:
- LIGO-T040148: Common Mode Servo Design
- LIGO-T1200477: Laser Locking HF Compensation
- Referenced by:
- LIGO-D1201404-v1: PZT Notch for Higher Frequencies
- LIGO-E1200934-v1: ECR, CM Board Modifications (ALS)
- LIGO-E1200175: aLIGO, ISC, Electronics, Common Mode Servo