ECR: Change ETM HWS light source from pick-off of ALS beam to green LED and couple in via orthogonal polarization

Document #:

LIGO-E1800129-v1

Document type:

E - Engineering documents

Abstract:

Change ETM HWS light source from pick-off of ALS beam to green LED and couple in via orthogonal polarization

Files in Document:

• E1800129-v1_ETM_HWS_green_ECR.pdf (99.0 kB)

Other Files:

• E1800129-v1_ETM_HWS_green_ECR.docm (29.7 kB)

Topics:

• Change Control
• Auxiliary Optics
• Final Design

Authors:

• Aidan Brooks

Keywords:

TCS HWS ETM ALS

Notes and Changes:

IIET location: https://services.ligo-la.caltech.edu/FRS/show_bug.cgi?id=10533

08.79 - Alternative ETM HWS Light Source ($15,000 50/50 LHO/LLO)
08.79.02 (P2068927) - LHO
08.79.03 (P2068934) - LLO

Related Documents:

• LIGO-D1400241: H1 ALS Y-End Station Optical Table Layout (ISCTEY) - LHO actual installation
• LIGO-T0900144: Adv. LIGO Arm Length Stabilization Design