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= This page is obsolete =
Please see [[Upgrade 09/Optical Layout|here]]

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||ROC [m] ||96 +50/-0 || ||
||Geometric Length (X-arm) [m] ||8.35852 || ||
||Geometric Length (Y-arm) [m] ||8.32295 || ||		 ||ROC [m] ||96.3 +50/-0 ||117.1+50/-20 ||
||Geometric Length (X-arm) [m] ||8.32732 ||6.64689 ||
||Geometric Length (Y-arm) [m] ||8.29175 ||6.61132 ||
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 . Mathematica note books to compute the above parameters attachment:PRC-ROC.nb  . Mathematica note books to compute the above parameters [[attachment:PRC-ROC.nb]] [[attachment:SRC-ROC.nb]]

This page is obsolete

Please see here

PRC/SRC parameters

PRC

SRC

ROC [m]

96.3 +50/-0

117.1+50/-20

Geometric Length (X-arm) [m]

8.32732

6.64689

Geometric Length (Y-arm) [m]

8.29175

6.61132

The PRC and SRC parameters are chosen to match the recycling cavity modes to the arm cavities, as well as to provide the required Schnupp asymmetry. The Schnupp asymmetry required in vacuum is 5cm but it is less in the above table because only X-arm sees the BS substrate. This allows us to reduce the effective arm length asymmetry for Gaussian beam propagation by a factor of 2.

Upgrade_08/Optics/RCParams (last edited 2012-01-03 23:02:41 by localhost)