## page was renamed from Upgrade 09/GreenLock/October 2010
= goals in this month =

 . '''''  - get a green beam coming from the chamber to the PSL table '''''

 . '''''  - do a science at the PSL table '''''

 . ''''' - develop a simlink model for simulated plant '''''

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= to do list =

||{{attachment:green.png}} '''complete'''|| {{attachment:orange.png}} '''intermediate state ''' || {{attachment:red.png}} '''nothing happened''' || {{attachment:black.png}} gave up||

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 . ''' in-vac work '''
   . {{attachment:green.png}} align the beam axis at the end station
   . {{attachment:green.png}} open the heavy doors
   . {{attachment:green.png}} take the access connector out
   . {{attachment:green.png}} install the last periscope and steering mirrors
   . {{attachment:green.png}} final alignment including 1064 optics

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 . ''' work at the PSL table '''
   . {{attachment:green.png}} put a 90/10 beam splitter after the PMC
   . {{attachment:green.png}} rearrange the doubling crystal
   . {{attachment:green.png}} mode match to the doubling crystal   --> '' it has s-polarization ''
   . {{attachment:green.png}} check the polarization of the crystal
   . {{attachment:green.png}} make the hole wider on the wall of the PSL booth
   . {{attachment:green.png}} place Hartmut's RFPD
   . {{attachment:green.png}} characterization of the RFPD
   . {{attachment:green.png}} find beat note by sweeping the end laser's temperature


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 . ''' digital system'''
   . {{attachment:green.png}} prepare the front end machine {{{ c1iscex }}}
   . {{attachment:green.png}} make a simulated plant
   . {{attachment:green.png}} run the realtime code on a Gentoo
   . {{attachment:green.png}} RFM
   . {{attachment:green.png}} recheck the ADCs
   . {{attachment:green.png}} digitally slow feedback to the laser temperature

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 . ''' misc. '''
    . {{attachment:green.png}} re-check the items
    . {{attachment:orange.png}} re-check the mode matching of the beam going to the cavity
    . {{attachment:green.png}} have a prediction what we will see at the vertex 
    . {{attachment:orange.png}} make the wiki page better and more user friendly
    . {{attachment:orange.png}} renew some old diagrams
    . {{attachment:green.png}} buy DC blocks from mini circuit

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= considerations =

== what is the polarization of the doubling crystal ==
The one sitting on the PSL table has S-polarization apparently.
Since the beam coming from PMC is P-polarizing we had to put a lamda/2 wave plate.