LIGO Document E1500432-v1

Add RF centering to AS wavefront sensors

Document #:
LIGO-E1500432-v1
Document type:
E - Engineering documents
Other Versions:
Abstract:
This is a proposal to allow the RF beam centering of AS WFSs using 2xOmega (e.g. 90MHz) component, in addition to already available DC component.
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Notes and Changes:
Issue tracker: https://services.ligo-wa.caltech.edu/integrationissues/show_bug.cgi?id=1166


12/4/2015 approved by Peter Fritschel & Dennis Coyne, with the following understanding:
* we plan to try/test at LHO first, then see if useful/needed for LLO
* will require the design of a diplexer and about $12K/IFO in M&S/equipment funds

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