CVI broadband AR coating was measured at the PSL-enclosure table around 9-10am today. The 2W Innolight first PBS S polarization beam was used with an other 1/2 wave plate and PBS.
W2-PW1-1004-C-633-1064-0 This 0.045" thick window has 0.7- 0.8 % reflected beam on each sides at 5 degrees of incidence, P polarization.
The specification is R avg <0.5 % per surface at 0 degree
Rana wants The device would be useless with such a high R, but R 0.1% is OK so I will get V coating.