TwinCAT Library for ALS Laser Locking

Document #:

LIGO-E1300482-v3

Document type:

E - Engineering documents

Abstract:

Library for autolocking of ALS PLL at end stations. Includes a function block that checks for error that may prevent locking and a slow servo that adjusts the laser crystal temperature.

Files in Document:

• E1300482-v3.pdf (479.8 kB)

Other Files:

• E1300482-v3.docx (177.5 kB)

Topics:

• Sensing and Control

Authors:

• Sheila Dwyer

Keywords:

ALS PLL

Notes and Changes:

Make laser locking compatible with TTFSS, so it can support the squeezer.

Related Documents:

• LIGO-T1300883: Nominal ALS Frequencies