LIGO Document T0900407-v4

Pre Mode Matching Telescope Parameters, Adaptive Mode matching and Diagnostics

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T - Technical notes
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This document describes the optical parameters and the layout for the pre mode matching telescope for the Advanced LIGO cavities. The decision of specific Gouy phases in the recycling cavities requires mode matching between recycling cavity and the mode cleaner. In this document, we describe the optical layout of HAM2 and the parameters for the pre mode matching telescope. We also describe mode matching diagnostics and adaptive mode matching operation.
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This is updated version that incorporates comments from the IO FDR committee. The final revision is being held on January 12th, 2010.

Note: Sections 6,7 and 8 are obsolete and are updated in T1300941.

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