| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
9941
|
Mon May 12 14:42:25 2014 |
steve | Update | endtable upgrade | optical table enclosure wall proposal and table at ETMY |
|
|
|
11591
|
Fri Sep 11 10:56:47 2015 |
Steve | Update | endtable upgrade | ETMY optical table feedthrough | The ETMY enclosure feedthrough - north
is installed. The sealing material is hard
to work with. |
|
|
11600
|
Tue Sep 15 16:49:08 2015 |
Steve | Update | endtable upgrade | ETMY optical table feedthrough | ETMY optical table enclosure feedthrough-
south is in. Now it is time to see how air
tightness increases performance. |
|
|
11608
|
Thu Sep 17 02:22:53 2015 |
Steve | Update | endtable upgrade | ETMY optical table feedthrough | I doubt we'll see any effect until
we carefully seal the holes. If there's
1 hole in your boat it still sinks. |
|
|
11897
|
Tue Dec 22 16:39:42 2015 |
Steve | Update | endtable upgrade | ETMY optical table enclosure | I think there should be a scientifically
based aveluation of the ETMY enclosure so
we can make the ETMX better. |
|
|
12029
|
Thu Mar 10 16:29:32 2016 |
gautam | Update | endtable upgrade | Inventory check | I did a quick sweep of the lab to find
out what hardware has already been acquired
for the X-end table upgrade. The attached |
|
|
12030
|
Thu Mar 10 16:32:45 2016 |
rana | Update | endtable upgrade | Inventory check | Its not a good idea to use green mounts
with green lasers. Steve should be able to
get another copy of the EY doubler mount |
|
|
12033
|
Mon Mar 14 22:42:23 2016 |
gautam | Update | endtable upgrade | Inventory check |
|
|
|
12051
|
Mon Mar 28 10:43:18 2016 |
Steve | Update | endtable upgrade | ETMX 4'x2' optical table pictures |
|
|
|
12056
|
Wed Mar 30 17:38:52 2016 |
gautam | Update | endtable upgrade | X end table proposed layout | Attachment 1: This
is a photo of the current X end table optical
layout with the beampaths of the various |
|
|
12057
|
Thu Mar 31 09:38:41 2016 |
Steve | Update | endtable upgrade | Y end 4x3 existing layout | Beam colors: 1064 nm red, 514 nm green
and 633 nm yellow.
There should be room for lens in |
|
|
12058
|
Thu Mar 31 19:49:31 2016 |
gautam | Update | endtable upgrade | proposed layout v2 | The major changes from the previous layout:
I've depicted the Green
reflected beam path more accurately - I approximately measured |
|
|
12060
|
Mon Apr 4 10:59:12 2016 |
gautam | Update | endtable upgrade | proposed layout v3 | I realized I had overlooked an important
constraint in the layout, which is that the
enclosure will have two supports that occupy |
|
|
12061
|
Mon Apr 4 15:04:14 2016 |
gautam | Update | endtable upgrade | COMPONENT REMOVAL |
I'm
planning to start removing components from |
|
|
12063
|
Tue Apr 5 11:42:17 2016 |
gaericqutam | Update | endtable upgrade | TABLE REMOVAL | There is currently no table at
the X end!
We have moved the vast majority |
|
|
12065
|
Wed Apr 6 17:52:21 2016 |
gautam | Update | endtable upgrade | First contact cleaning commenced | I've begun cleaning the optics that
will eventually go back onto the newly installed
X-endtable. We decided that First Contact |
|
|
12066
|
Thu Apr 7 12:51:24 2016 |
gautam | Update | endtable upgrade | Beam height differences | Steve has finished installing the enclosure
on the new endtable. So Eric and I decided
to try and lock the X arm and measure the |
|
|
12067
|
Thu Apr 7 14:30:58 2016 |
Steve | Update | endtable upgrade | ETMX table height |
|
|
|
12068
|
Fri Apr 8 09:13:20 2016 |
Steve | Update | endtable upgrade | ETMX-T beam height | X arm resonating after alignment, beam
height on ETMX optical table ~4.75"
|
|
|
12073
|
Wed Apr 13 00:56:07 2016 |
gautam | Update | endtable upgrade | X endtable repopulation | Over the last couple of days, I've
been working on restoring the optical layout
on the X-endtable. Some notes about the status |
|
|
12074
|
Wed Apr 13 11:00:28 2016 |
Steve | Update | endtable upgrade | X endtable repopulation | ETMX optical table is grounded to ETMX
chamber through 1 Mohms
The doubling oven temp controller |
|
|
12075
|
Wed Apr 13 18:25:07 2016 |
gautam | Update | endtable upgrade | Lightwave health check | [Koji,gautam]
Lightwave NPRO information:
Model: 126-1064-700 |
|
|
12079
|
Fri Apr 15 18:38:12 2016 |
gautam | Update | endtable upgrade | Lightwave health check - NO IMPROVEMENT | I re-measured the power levels today.
We have ~205mW out of the NPRO,
and ~190mW after the Faraday. It doesn't |
|
|
12083
|
Tue Apr 19 18:37:29 2016 |
gautam | Update | endtable upgrade | Laser swap + optical layout | Summary of work done over the last
two days
Lightwave NPRO |
|
|
12085
|
Thu Apr 21 14:25:52 2016 |
gautam | Update | endtable upgrade | Green light recovered | I've made progress on the new layout
up to the doubling oven. After doing the
coarse alignment with the diode current to |
|
|
12089
|
Tue Apr 26 15:22:35 2016 |
Steve | Update | endtable upgrade | Cleaning ETMX vacuum dirty window | Gautom is progressing with the layout nicely.
The X-arm transmission window have not seen
cleaning for decades. This should be the |
|
|
12090
|
Tue Apr 26 23:19:42 2016 |
gautam | Update | endtable upgrade | Green aligned to arm - high order mode flashes seen | Attachment #1
Layout as of today. Most of the
green path is done. The Green REFL PD + PZT |
|
|
12094
|
Wed Apr 27 15:04:47 2016 |
Steve | Update | endtable upgrade | Cleaning ETMX vacuum dirty window | It looks very promising.
|
|
|
12095
|
Thu Apr 28 00:41:08 2016 |
gautam | Update | endtable upgrade | more progress - Transmon PD installed | The IR Transmon system is almost completely
laid out, only the QPD remains to be installed.
Some notes: |
|
|
12099
|
Fri Apr 29 00:55:46 2016 |
gautam | Update | endtable upgrade | green PDH locked to Xarm | Using the modulation frequency suggested
here,
I hooked up the PDH setup at the X-end and |
|
|
12100
|
Fri Apr 29 16:05:23 2016 |
gautam | Update | endtable upgrade | Cleaning ETMX vacuum dirty window | After a second round of F.C. application,
I think the window is clean enough and there
are no residual F.C. pieces anywhere near |
|
|
12104
|
Mon May 2 19:14:18 2016 |
gautam | Update | endtable upgrade | Optical layout almost complete | With Steve's help, I installed the
Oplev earlier today. I adjusted the positions
of the two lenses until I deemed the spot |
|
|
12105
|
Thu May 5 03:05:37 2016 |
gautam | Update | endtable upgrade | ALS status update | [ericQ, gautam]
Today we spent some time looking
into the PDH situation at the X end. A summary |
|
|
12108
|
Thu May 5 14:05:01 2016 |
rana | Update | endtable upgrade | ALS status update | All seems very fishy. Its not good to put
attenuators and filters in nilly-willy.
Once the post-PD bandpass |
|
|
12109
|
Thu May 5 21:28:44 2016 |
gautam | Update | endtable upgrade | Innolight PZT capacitance | I suggested
in an earlier elog that after the repair |
|
|
12122
|
Thu May 19 16:29:20 2016 |
Steve | Update | endtable upgrade | Optical layout almost complete |
|
|
|
12526
|
Fri Sep 30 19:53:07 2016 |
gautam | Update | endtable upgrade | X end IR pickoff fiber coupled | [johannes, gautam]
Today we re-installed the fiber
coupler on the X-endtable to couple some |
|
|
12532
|
Wed Oct 5 16:28:10 2016 |
gautam | Update | endtable upgrade | EX laser power monitor PD installed | I installed a 10% BS to pick off some of
the light going to the IR fiber, and have
added a Thorlabs PDA55 PD to the EX table |
|
|
438
|
Tue Apr 22 22:19:02 2008 |
rob | Metaphysics | lore | jiggling sliders |
In the interests of tacit communication of
scientific knowledge, I here reveal a nugget |
|
|
1104
|
Sun Nov 2 20:21:58 2008 |
rana | Configuration | lore | HP 5550dtn (Grazia) set up on allegra | I set up printing to grazia from allegra.
The CUPS interface was not as straightforward
as Tobin had made it seem in the Wiki. I |
|
|
1217
|
Thu Jan 8 16:49:37 2009 |
rana | Configuration | lore | HP 5550dtn (Grazia) set up on allegra | [quote]I set up printing to grazia from allegra.
The CUPS interface was not as straightforward
as Tobin had made it seem in the Wiki. I |
|
|
1579
|
Wed May 13 02:53:12 2009 |
rob | Summary | lore | Channel Hopping: That ancient enemy (MC problems) | We were stymied tonight by a problem which
began late this afternoon. The MC would
periodically go angularly unstable, breaking |
|
|
1582
|
Wed May 13 14:43:29 2009 |
rob | Summary | lore | Channel Hopping: That ancient enemy (MC problems) |
|
|
|
2138
|
Fri Oct 23 15:02:00 2009 |
rob | Update | lore | marconi phase | So, it appears that one doesn't even have
to change the Marconi set frequency to alter
the phase of the output signal. It |
|
|
2139
|
Sat Oct 24 04:57:33 2009 |
rana | Update | lore | marconi phase |
|
|
|
2414
|
Mon Dec 14 15:18:18 2009 |
Jenne | Update | lore | armLoss script ran....results confidential | I ran the armLoss script for both Xarm
and Yarm. The results are confidential,
pending the completion of Alberto's cavity |
|
|
2566
|
Wed Feb 3 09:01:42 2010 |
rob | Update | lore | IFO isn't playing nice tonight |
|
|
|
2598
|
Fri Feb 12 14:19:28 2010 |
rana, steve | HowTo | lore | International Fax | Steve showed me how to send an international
fax today:
Load paper.
|
|
|
3660
|
Wed Oct 6 14:49:54 2010 |
rana | Summary | lore | Steve on the sea | |
|
|
4960
|
Mon Jul 11 14:03:37 2011 |
steve | HowTo | lore | how to visit your old lab | Alberto is visiting us from Australia.
He brought some terrific presents. It is
going to be very demanding task to wait for |
|