I have worked out the fibers we need to get for the following distribution scheme:
1) We have a laser placed at the 1Y1 rack. A part of the power is split off for monitoring the laser output and sent to a broadband PD also placed in the same rack. The RF excitation applied to the laser is split and sent to LSC rack (1Y2) and used to calibrate the full PD+Demod board system for each RFPD.
2) A single fiber goes from the laser to a 11+ way switch located in the OMC electronics cabinet next to the AP table. From here the fibers branch out to three different tables.
Cable for the laser source to the OMC table:
We also require a cable going from PSL table to the ETMY table: This is not a part of the RFPD characterisation. It is a part of the PSL to Y-end Aux laser lock which is a part of the green locking scheme. But it is fiber we need and might as well order it now along with the rest.
If you would like to add anything to this layout / scheme, please comment. On Monday Eric is going to take a look at this and place orders for the fibers.
(I have included the lengths required for routing the fibers and added another 20% to that )