Differences between revisions 17 and 18

Actual Optical Parameters of the Main Interferometer

Contents

Optical Parameters

MIF Diagram

This is the parameter set chosen by the MIF group.

Folding angle is an incident angle of the beam to the folding mirrors. The angle between incoming and reflected beams is twice the folding angle.

ITM (Sapphire)	>666km
PRM (Silica)	>10000km

This is an alternative parameter set. Do not use these parameters.

Lengths & Frequencies

Radius of Curvatures (Positive for concave)

Beam Spot Size (1/e^2 radius)

PRM	4.355mm	PR2	4.355mm	PR3	35.77mm
SRM	4.355mm	SR2	4.355mm	SR3	35.77mm

Lens effect (effective focal length seen from the AR side)

ITM (Sapphire)	-9610m
PRM (Silica)	-765.6m

-  ⇤ ← Revision 17 as of 2011-02-17 17:49:52 → 
  Size: 2205
  Editor: YoichiAso
  Comment:
+   ← Revision 18 as of 2011-02-18 15:29:36 → ⇥
  Size: 2201
  Editor: YoichiAso
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 15:
-||f1||16.881370MHz (3*f2/8)||f2||45.016989MHz||f3||56.271236MHz (10*f2/8)||
||Larm||3000.0m||Lmc||26.638m||||||
||Lprc||66.5863m||Lsrc||66.5924m||Las||3.3298m||
||Lp1||14.75854||Lp2||12.0657m||Lp3||14.7621m||
+||f1||16.880962MHz (3*f2/8)||f2||45.015898MHz||f3||56.269873MHz (10*f2/8)||
||Larm||3000.0m||Lmc||26.639m||||||
||Lprc||66.591m||Lsrc||66.591m||Las||3.3299m||
||Lp1||14.7609||Lp2||12.0667m||Lp3||14.7638m||
 Line 20:
-||Ls1||14.75854m||Ls2||12.0657m||Ls3||14.7621m||
||Folding angle||0.6293[deg]||||||||||
+||Ls1||14.7609m||Ls2||12.0667m||Ls3||14.7638m||
||Folding angle||0.6292[deg]||||||||||
 Line 29:
-||PRM||314.516m||PR2||-3.255m||PR3||27.36m||
||SRM||314.516m||SR2||-3.255m||SR3||27.36m||
+||PRM||300.624m||PR2||-3.251m||PR3||27.36m||
||SRM||300.624m||SR2||-3.251m||SR3||27.36m||