Per IO ECR E1300432:
Components to be changed in the IO path on the PSL:
Status: not complete
Other information collected:
PD Channels:
H1:PSL-EOM_A_DC_POWER - thorlabs behind IO_AB_W1
H1:IMC-PWR_EOM_OUTPUT - thorlabs behind IO_AB_W1
PD,measured power:
IO_AB_PD3, thorlabs PDA55, 3.33mW
Incident on BS:
before the splitter, IO_AB_W1, 3.51mW
PD,measured power:
IO_AB_PD1, Newport 1811 RFPD, about 50uW - two beams, fast measurement, needs more time to set up
PD Channels:
H1:PSL-PERISCOPE_A_DC_POWER - bottom periscope trans
H1:IMC-PWR_IN_OUTPUT - bottom periscope trans
PD,measured power:
IO_AB_PD2, thorlabs PDA55, 83uW
Incident on steering mirror:
before steering mirror IO_AB_M9, 85uW
Incident on BS:
power in non-PD path, coming off of IO_AB_M10, 85uW