40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Message ID: 186     Entry time: Tue Jul 21 18:45:26 2009
Author: Connor 
Type: Laser 
Category: Fiber 
Subject: alignment of optics 

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.

Attachment 1: FSprelimsetup.jpg  568 kB  | Hide | Hide all
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