ECR for beam centering servo for green WFS

Document #:

LIGO-E1400311-v2

Document type:

E - Engineering documents

Abstract:

Implement beam centering servos for green wave front sensors in the end stations.

Files in Document:

• E1400311-v2.docm (file is not accessible)

Topics:

• Sensing and Control

Authors:

• Sheila Dwyer
• Daniel Sigg

Notes and Changes:

This ECR was not approved.
Testing in H1 approved using borrowed 3rd IFO hardware (Mad City Labs PZT mirrors and controllers). ECR pending results of testing. No plans to install ALS WFS on L1. Experiment closed. No permanent (ECR) change.

See FRS issue/ECR tracker entry:
https://services.ligo-la.caltech.edu/FRS//show_bug.cgi?id=5050

Related Documents:

• LIGO-D1500027: Auxiliary Signals Concentrator 6

Referenced by:

• LIGO-E1400312: Electronics and Optics Change Request from the HIFO-XY Test
• LIGO-E1400071-v1: ECR for adding auto-alignment for ALS