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to the LIGO Core Optic Components design. The documents are for LIGO internal
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updated November 21, 2001
Side 1 T= 0.505@ 45 degrees /P polarization
Side 2 R=70 ppm at 1053 nm
2.51 ± 0.14 ppm/cm
Phase map data (about phase map
format and filenames)
CIT Data covers the center 150mm
Dataset has only Tilt subtracted. There are no missing data
points within the set.
This data set is taken while viewing the optic at a 45° angle of
Therefore the x direction is extended by 1.414 and actually covers
212 mm of the BS diameter.
The Y direction covers a 150 mm diameter.
The amplitde of the data also appears higher by 1.414 because of the
45° angle of incidence.
Call Gari if you have questions (X2184)
Coefficients for this data set (about
Zernike Coeffs, we use the Wyko definitions)
Radius of curvature: See last column at Index
Because of the 45° angle of incidence these Zernike's are fairly
meaningless. But I've included them by request.
Physical configuration: See drawings at Index
Nominal: 25cm x 4 cm
Wedge: 1º Installed with the thick side up
- this orientation corresponds to the - 180º phase map designated
Image of the dataset 45DegBS04-180