I have placed the G&H mirrors and the Y1 as pictured in my proposed layout in elog 8649. The distance between the 2" lens and the PDs has increased, so the focus point is all wrong. I have measured the distances between optics on the table, and will pick new lenses and finish the POP layout later today or tomorrow.
For now, here are the powers measured using the Ophir power meter:
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PRM-ITMY lock, POPDC was ~190 counts
5.29 uW after Y1 weird angle. Can't see beam before then to measure
5.27 uW before BS50
3.5 uW before razor PD
3.00 uW before 110PD
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After installing G&H mirrors, replacing BS-98 with Y1:
4.94 uW before y1 (after G&H's)
4.92 uW after y1
2.66 uW before razor PD
1.61 uW before 110PD |