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Entry  Tue Jan 7 23:24:41 2014, Jenne, Update, General, IFO plan, list o' things to do 
    Reply  Wed Jan 8 13:46:39 2014, Jenne, Update, General, IFO plan, PRM baffle PRMcage_6Sept2012.JPG
    Reply  Wed Jan 8 17:53:26 2014, manasa, Update, General, IFO plan, IPANG telescope IPANG_layout.pngIPANG.png
       Reply  Thu Jan 9 17:21:45 2014, rana, Update, General, IFO plan, IPANG telescope 
    Reply  Thu Jan 9 10:34:58 2014, Steve, Update, PSL, PSL pointing changes in pitch Lfnfdnc.png24hPSLpointing.png
       Reply  Fri Jan 10 10:28:03 2014, Steve, Update, PSL, PSL pointing changes  clamped.png
Message ID: 9543     Entry time: Thu Jan 9 17:21:45 2014     In reply to: 9540
Author: rana 
Type: Update 
Category: General 
Subject: IFO plan, IPANG telescope 

Quote:

For the IPANG telescope design, we are in the 'beyond the Rayleigh range' regime. So using a single lens to make the beam small is not a great idea. I

Can you please explain this? I don't understand what exactly is the issue or 'great idea'.

I think we should be OK with just a single lens in the vacuum. But what we need is the ray tracing analysis to show what the effect will be on the IPANG readout.

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