2023-11-01 1130-1630 @ ATC North bld.txt, NAOJ
Tabletop experiment of speed meter
Yohei Nishino & Munetake Otsuka
-Configuration
1)Laser -> 2)QWP -> 3)HWP -> 4)Convex lens -> 5)BS -> 6)HWP
-> 7)FR -> 8)Rotary Disc Shutter -> 9)HWP -> 10)AOM -> 11)Mirror
-> 12)Mirror -> 13)Convex lens -> 14)EOM
-Optical power mesurement of 10)AOM
1st diffraction light 1.06 mW
Transmitted light 0.69 mW
while input light 1.81 mW
-Optical component specifications of 10)AOM
Diffraction efficiency : 60% (=1.06/(1.06+0.69)
-Configuration
9)HWP : 51
Function generator for 10)AOM : 40MHz 5V(0 to peak)
-Beam profile after 13)lens
position x-width y-width
700mm 0.29mm 0.38mm
750mm 0.28mm 0.20mm
800mm 0.33mm 0.34mm
850mm 0.49mm 0.60mm