40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Wed Jan 30 02:20:38 2013, tara, Notes, Drawings, layout for the new setup 
    Reply  Fri Feb 1 03:14:45 2013, tara, Notes, Drawings, layout for the new setup ctn_layout_2laser.pdf
       Reply  Mon Feb 18 03:16:44 2013, tara, Notes, Drawings, layout for the new setup ctn_layout_2laser_v2.png
          Reply  Fri Jun 21 21:02:40 2013, tara, Notes, Drawings, layout for the new setup 
             Reply  Mon Jun 24 21:27:02 2013, tara, Notes, RefCav, setup for 2nd refcav 
Message ID: 1100     Entry time: Mon Feb 18 03:16:44 2013     In reply to: 1098     Reply to this: 1204
Author: tara 
Type: Notes 
Category: Drawings 
Subject: layout for the new setup 

The new optic layout is done. There are some changes from the previous version.

Some notes and concerns about the new layout:

  • I made sure that the beam size in all EOMs, EAOMs are in the right size (diameter ~ 250 - 500 um) to avoid any clipping/ diffraction.
  • Due to the small waist size of the new cavities and the long path between the cavity and the vacuum window. The beamsize on the input optic is quite large (almost 3mm). I'll have to check if the beam spiltter is large enough.
  • I assume that the beam size from the new PMC (the setup on the left) is 370um. It might change because the design for the PMC is not settled yet, but the spacer is enough for mode matching.
  • I add a beam splitter in the setup just before the vacuum window. This can be used for RFAM pickup or fiber distribution. It can be done in the future.
  • a set of flip mirrors are added, for scanning two cavities with one laser. The mode match should be good enough to get TEM00 in the 2nd cavity.

ctn_layout_2laser_v2.png

 

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