[Daniel, Sander, Torrey]

We have taken input, trans, and reflected powers for the cavity at both wavelengths. This is done by locking the cavity with one wavelength and then measuring the respective powers of the other. Additionally when doing the 1550 nm light measurements you have to tune the AOM RF drive frequency so that the 1550 transmission/reflection is maximized/minimized. The results are as follows:

1550 nm

• input - 2.18 mW
• measured output .67 mW (this is after a 5050 BS)
• Infered output ~1.4 mW (.67 *2 + 5% losses on the BS)
• reflection is .5 mW
• This implies a 13% loss.

775 nm

• input 94 uW
• transmission 64 uW
• reflection 46 uW - this requires swapping the locking scheme to be on the 1550 path as blocking the 775 refl path would obviously break the cavity.
• Parking the two transmission peaks is more difficult in this configuration and is providing numbers where trans + refl > input which don't make sense. More to come on this measurement.