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40m Log |
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Tue Nov 13 11:30:54 2012, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser
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Tue Nov 13 16:18:51 2012, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profile
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Tue Nov 13 20:13:07 2012, Koji, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : Circularize the 1W NPRO beam profile
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Mon Nov 19 20:03:53 2012, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : ETMX layout on new table
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Mon Nov 19 20:17:53 2012, Jenne, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : ETMX layout on new table
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Mon Nov 19 22:42:14 2012, Koji, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : ETMX layout on new table
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Tue Nov 20 11:40:19 2012, rana, Configuration, Green Locking, End table upgrade for auxiliary green laser : ETMX layout on new table
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Wed Dec 12 11:04:45 2012, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : ETMX layout on new table
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Thu Jan 10 12:41:06 2013, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : wiki page
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Tue Mar 5 00:24:52 2013, Manasa, Configuration, 40m Upgrading, Endtable upgrade for auxiliary green laser : customized mount
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Tue Mar 19 14:21:57 2013, Manasa, Update, 40m Upgrading, Endtable upgrade : INVENTORY
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Tue Mar 19 19:19:50 2013, Jenne, Update, 40m Upgrading, Endtable upgrade : INVENTORY
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Wed Mar 20 14:00:21 2013, Steve, Update, 40m Upgrading, Endtable upgrade
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Wed Mar 20 15:51:54 2013, Manasa, Update, 40m Upgrading, Endtable upgrade
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Thu Mar 21 08:11:53 2013, Steve, Update, 40m Upgrading, ETMY table swap
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Thu Mar 21 08:46:46 2013, Manasa, Update, 40m Upgrading, ETMY table swap
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Thu Mar 21 17:06:34 2013, Steve, Update, 40m Upgrading, ETMY table is out
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Mon Mar 25 18:07:31 2013, Steve, Update, 40m Upgrading, ETMY table is out
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Tue Mar 26 16:10:31 2013, Jamie, Update, 40m Upgrading, ETMY table leveling
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Tue Mar 26 16:36:24 2013, Steve, Update, 40m Upgrading, table leveling mounts go here 
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Fri Mar 29 16:30:27 2013, Steve, Update, 40m Upgrading, table leveling mounts go here
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Fri Mar 29 16:35:54 2013, Steve, Update, 40m Upgrading, Endtable upgrade
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Tue Apr 2 17:23:23 2013, Steve, Update, 40m Upgrading, new ETMY optical table & enclosure in place
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Thu Apr 4 17:23:05 2013, Steve, Update, 40m Upgrading, ETMY optical table & enclosure is ready for optics
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Fri Apr 5 01:18:34 2013, Manasa, Update, 40m Upgrading, Not a fan of the new plastic box yet
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Sat Apr 6 09:21:36 2013, rana, Update, 40m Upgrading, Not a fan of the new plastic box yet
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Mon Apr 8 16:37:26 2013, Steve, Update, 40m Upgrading, ETMY enclosure wall transmission
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Mon Apr 22 17:43:09 2013, Steve, Update, 40m Upgrading, ETMY optical table & enclosure is ready for optics
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Mon Apr 22 19:48:56 2013, Jenne, Update, 40m Upgrading, 4 pins enough?
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Tue Apr 23 15:00:20 2013, Jenne, Update, 40m Upgrading, 4 pins enough?
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Mon Mar 25 18:42:38 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : Timeline
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Fri Mar 29 00:27:06 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : Assembly 
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Fri Apr 5 01:28:56 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : populating the table
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Tue Apr 9 00:15:18 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : populating the table
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Wed Apr 10 14:25:04 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : LWE Alberto laser beam profile 
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Wed Apr 17 02:20:13 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress 
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Wed Apr 24 15:27:59 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress: New layout
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Tue May 7 19:06:45 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Thu May 9 01:36:32 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Thu May 9 22:29:23 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Fri May 10 20:05:21 2013, Annalisa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Mon May 13 21:35:55 2013, Annalisa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Tue May 14 14:24:56 2013, Steve, Update, 40m Upgrading, enclosure removal
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Thu May 16 08:32:05 2013, Steve, Update, 40m upgrading, ETMY op table disabled
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Fri May 17 00:32:32 2013, Annalisa, Update, 40m upgrading, ETMY - progress
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Fri May 17 15:38:51 2013, Steve, Update, 40m upgrading, ETMY enclosure is on the way back
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Fri May 17 16:06:14 2013, rana, Update, 40m upgrading, ETMY op table disabled
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Fri May 17 18:24:04 2013, Annalisa, Update, 40m upgrading, ETMY - progress
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Thu May 23 00:16:32 2013, Annalisa, Update, 40m upgrading, ETMY - progress
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Thu May 23 12:02:48 2013, Steve, Update, endtable upgrade, ETMY - oplev
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Thu May 30 11:10:00 2013, Steve, Update, endtable upgrade, ETMY - oplev
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Thu May 30 20:45:53 2013, Annalisa, Update, endtable upgrade, ETMY - oplev
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Fri May 31 11:15:01 2013, Annalisa, Update, endtable upgrade, ETMY - Mode Matching for green - new calculation
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Fri Sep 11 10:56:47 2015, Steve, Update, endtable upgrade, ETMY optical table feedthrough
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Tue Sep 15 16:49:08 2015, Steve, Update, endtable upgrade, ETMY optical table feedthrough
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Thu Sep 17 02:22:53 2015, Steve, Update, endtable upgrade, ETMY optical table feedthrough
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Fri May 24 02:12:50 2013, Annalisa, Update, 40m upgrading, ETMY - Mode Matching for green  
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Fri May 24 11:38:00 2013, Koji, Update, 40m upgrading, ETMY - Mode Matching for green
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Fri May 24 12:50:25 2013, Annalisa, Update, 40m upgrading, ETMY - Mode Matching for green
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Sat May 25 02:03:48 2013, Annalisa, Update, 40m upgrading, ETMY - Mode Matching for green - new calculation    
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Mon May 27 21:38:53 2013, Annalisa, Update, 40m upgrading, ETMY - Beam Dumps
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Tue May 28 22:11:23 2013, Annalisa, Update, 40m upgrading, ETMY - Yarm shutter cable
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Tue May 21 17:03:45 2013, Steve, Update, endtable upgrade, enclosure tops are sealed   
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Thu Jun 6 09:58:13 2013, Steve, Update, endtable upgrade, enclosure to chamber connection 
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Tue Dec 22 16:39:42 2015, Steve, Update, endtable upgrade, ETMY optical table enclosure  
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Tue May 14 21:03:15 2013, Annalisa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Wed May 15 21:27:39 2013, Annalisa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Thu May 2 01:19:41 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : progress
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Tue Apr 9 00:32:57 2013, Manasa, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : TRY temporarily in place
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Tue Apr 9 08:37:54 2013, Steve, Update, 40m Upgrading, Endtable upgrade for auxiliary green laser : TRY temporarily in place
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Tue Apr 9 21:27:48 2013, Jenne, Update, 40m Upgrading, TRY temporarily in place
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Message ID: 7728
Entry time: Mon Nov 19 22:42:14 2012
In reply to: 7726
Reply to this: 7731
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Author: |
Koji |
Type: |
Configuration |
Category: |
40m Upgrading |
Subject: |
Endtable upgrade for auxiliary green laser : ETMX layout on new table |
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- I don't like the idea to place the cylindrical lenses right in front of the laser.
This design requires the CLs to be tilted to avoid direct reflections going into the laser.
It is also required that they are made of UV fused silica to avoid thermal lensing.
- Instead, move the CLs after the farday while we keep L1, HWP, QWP after the laser.
L1 should be UV fused silica lens. I should be placed with slight tilt.
It is preferrable to place CLs after the faraday at somewhere the beam is not too small.
- The HWP before the SHG can be moved to downstream of the steering mirrors as they can change the poralization.
(Probably I am too paranoic.)
- Why don't you use the harmonic separator right after the SHG crystal in stead of relying on an arbitrary transmission of the 532nm mirrors?
- I am not confident about such a "nice" separation angle of the returning beam from the green faraday.
Confirm the separation angle on the actual setup.
The beams split in the polarizer rather than in the air like in your diagram.
Then because of this small angle separation, the pick-off mirror may have a bit more critical distance than you indicated.
(I could be wrong.)
- I don't think the green faraday is IO-5-532-HP. It should be IO-?-532-LP.
Rotate the tilt aligner 180deg so that we can easily access to the adjusting screws
- The green PDA36A path needs more length and probably a focusing lens too.
- After the PLCX lens, the beam is big (w=3mm) everywhere. Don't you want to use 2" mirrors and mounts?
- We eventually will install steering PZTs for the green.
On which mirrors do you want to install the PZTs? Do you have enough spare space for them?
- The mount indicated "HS" is one of the trickiest mounts on the table as the big beam goes through the mirror.
Probably you want to use 2" suprema mount with correct chirality.
- How is the power budget of the IR trans path? Which is the low power PD and which is the high power PD?
What's the transimpedance of them? Where is the crossover?
How much power does go into the CCD? Is it a reasonable amount?
- The IR transmon beam is even larger than the green beam (w=5mm).
You definitely need a lens to shrink the beam. But we don't want to have the QPD and the CDD at the focus.
- As Jenne pointed out, having a steering mirror for the IR PDA36A is a good idea.
But do you really want to use the Si PD for the IR tmonitor?
- I feel I don't want to have the pair of steering mirrors in the oplev incident path. One is enough.
We should be able to accommodate optional mode-matching lenses in the incident path.
We definitely don't want to have any lens in the returning path of the oplev.
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