YuefanGuo - 10:40, Tuesday 07 March 2017 (401)
BS mirror
Yesterday we found out that the BS mirror is pretty sensitive to the polarization. From p to s polarization, the transmit part can change from 10% to 2% (it is a 90:10 BS mirror). Mirror is BSX17 from Thorlabs. Below is the website:
https://www.thorlabschina.cn/newgrouppage9.cfm?objectgroup_id=4808&pn=BSX17
And we test the cable which can send signal from end room to the central room, we followed the cable to the end room, found a same box as in the central room, send a sine signal from there and got the signal with the oscilloscope in the central.But in the west end, we could not find the box, but I think we will not use that arm.
https://www.thorlabschina.cn/newgrouppage9.cfm?objectgroup_id=4808&pn=BSX17
And we test the cable which can send signal from end room to the central room, we followed the cable to the end room, found a same box as in the central room, send a sine signal from there and got the signal with the oscilloscope in the central.But in the west end, we could not find the box, but I think we will not use that arm.
Images attached to this report
