Yesterday I swapped the PDA100A that was used as a monitor for the IR power on the ALS table for one of the SMAPD1As.  Currently there are 65 mW in the IR path before the PBS and 0.91 mW incident on the PD.  That means the splitter ratio, which will depend on the half wave plate, is 1.4% now and responsivity is 0.36 A/W, which might be low because the PD might not be well aligned.  

I also double checked the calibration of the fiber transmission PDs, they are OK within 15%.  

I also saw that there was no beat note because the beams were badly misaligned.  After tuning up the alignment I saw 300mV pp (-9dBm) after the 13dBm amplifier.