Naoki, Wen, Camilla
After removing the SEED/CLF Fiber Switch in
alog 65063 we installed a new one into SQZT0.
Thorlabs MEMS Switch SN1x2-7N 2015-08-37731 soldered to board D1700376 by Fil.
This fiber switch has some bare optical fibers at both input ends, see
photo. We have a spare one with no bare fibers coming in the next few weeks if we need to swap it in future.
Output (port 2) is on the same side as CLF (port 4), the opposite side has SEED (port 3).
We measured the coupling from free space at the fiber coupler to the output of the fiber switch to be:
SEED: input 20mW, output 10mW = 50%
CLF: input 1mW, output 0.15mW = 15%
We got light into HAM7 too.
Wen also secured the cable he found blocking the FCGS path in alog 65371.