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Message ID: 1651     Entry time: Sun Jun 26 21:08:17 2016
Author: Antonio 
Type: DailyProgress 
Category: optic 
Subject: North path construction progress: PMC MM lenses  

Summary

I have added two lenses in order to create a waist of 330um for when the PMC will be implemented.

Not satisfied about the size of the beam. This has to be improved, but we are close enough. I am thinking

to put the PMC in place and mode match the laser beam to the PMC, in order to have a better reference.

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The two lenses are 114.5mm and 401mm focal length rispectively, as shown in the attached schematic.

 

At moment the beam for the PMC (after the two lenses) is the following:

Attachment 1: North_layout_progress_V2.pdf  70 kB  | Hide | Hide all
North_layout_progress_V2.pdf
Attachment 2: beam_profile_to_PMC.pdf  15 kB  | Hide | Hide all
beam_profile_to_PMC.pdf
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