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Entry  Sun Mar 21 20:08:20 2010, kiwamu, rana, Update, PSL, EOM wasit size waist.pngwaist.py.zip
    Reply  Sun Mar 21 21:02:39 2010, Koji, Update, PSL, EOM waist size 
Message ID: 2690     Entry time: Sun Mar 21 20:08:20 2010     Reply to this: 2691
Author: kiwamu, rana 
Type: Update 
Category: PSL 
Subject: EOM wasit size 

We are going to set the waist size to 0.1 mm for the beam going through the triple resonant EOM on a new PSL setup.

When we were drawing a new PSL diagram, we just needed to know the waist size at the EOM in order to think about mode matching.

waist.png

This figure shows the relation between the waist size and the spot size at the aperture of the EOM.

The x-axis is the waist size, the y-axis is the spot size. It is clear that there is a big clearance at 0.1 mm waist size. This is good.

Also it is good because the waist size is much above the damage threshold of the EO crystal (assuming 1W input).

The attached file is the python code for making this plot.

Attachment 2: waist.py.zip  948 Bytes  Uploaded Sun Mar 21 22:21:55 2010
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