The 1W NPRO is, for the moment, being used for both the FS and Gyro experiments. Aidan and I began aligning the optics for the FS experiment today.

The beam is first passed through a quarter-waveplate to linearize its polarization. A 50-50 beamsplitter picks off the beam for the Gyro experiment. The transmitted beam (for FS) is then attenuated by a half-waveplate and PBS. We steer the transmitted beam through a lens, a Faraday Isolator, and another lens to collimate it.

A photograph of the setup is attached.

We plan to direct the beam through an AOM and couple it to the fibre so we can characterize the acquired phase noise.