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=== Scope of the meeting === It has recently turned out that the largest S-axis Sapphire available right now is not as large as 25cm in diameter but 22cm.<<BR>> And the measured absorption of a Sapphire substrate is not as low as 20ppm/cm but 70ppm/cm.<<BR>> It should be also noted that the economic situation is not so good that we cannot expect too much on an additional large budget<<BR>> within the next few years, and also that it takes three years or more to provide 4 Sapphire mirrors, which means we should<<BR>> make it in mind that the mirrors we are ordering will be the one we use in 2017. === Scheduled date === Please vote on this website: http://densuke.biz/list?cd=YLTRVvPuz6xdhdZA === Reference === * 25W injection <<BR>> [[25Wcontour.pdf|IR vs Finesse/Rs]]<<BR>> [[25Wplot.pdf|Spectrum with 25W]]<<BR>> [[25Wspectra.pdf|Spectra with 25/50/75W]]<<BR>> * 50W injection <<BR>> [[50Wcontour.pdf|IR vs Finesse/Rs]]<<BR>> [[50Wplot.pdf|Spectrum with 50W]]<<BR>> [[50Wspectra.pdf|Spectra with 25/50/75W]]<<BR>> * 75W injection <<BR>> [[75Wcontour.pdf|IR vs Finesse/Rs]]<<BR>> [[75Wplot.pdf|Spectrum with 75W]]<<BR>> [[75Wspectra.pdf|Spectra with 25/50/75W]]<<BR>> |
LCGT Bandwidth Study 2011
Scope of the meeting
It has recently turned out that the largest S-axis Sapphire available right now is not as large as 25cm in diameter but 22cm.
And the measured absorption of a Sapphire substrate is not as low as 20ppm/cm but 70ppm/cm.
It should be also noted that the economic situation is not so good that we cannot expect too much on an additional large budget
within the next few years, and also that it takes three years or more to provide 4 Sapphire mirrors, which means we should
make it in mind that the mirrors we are ordering will be the one we use in 2017.
Scheduled date
Please vote on this website: http://densuke.biz/list?cd=YLTRVvPuz6xdhdZA
Reference
25W injection
50W injection
75W injection