40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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ID Date Author Type Categoryup Subject Text Attachments
  17115   Wed Aug 31 00:46:56 2022 KojiUpdateGeneralVertex Lab area to be cleanedAs marked up in the photos.

 

Attachment 5: The
 9x 
  17116   Wed Aug 31 01:22:01 2022 KojiUpdateGeneralAlong the X arm part 1 

Attachment 5:
RF delay line was accommodated in 1X3B. (KA)
 9x 
  17117   Wed Aug 31 01:24:48 2022 KojiUpdateGeneralAlong the X arm part 2 

 
 9x 
  17118   Wed Aug 31 01:25:37 2022 KojiUpdateGeneralAlong the X arm part 3 

 
 9x 
  17119   Wed Aug 31 01:30:53 2022 KojiUpdateGeneralAlong the X arm part 4Behind the X arm tube  PXL_20220831_020757504.jpgPXL_20220831_020825338.jpgPXL_20220831_020856676.jpgPXL_20220831_020934968.jpgPXL_20220831_021030215.jpg 
  17120   Wed Aug 31 01:53:39 2022 KojiUpdateGeneralAlong the Y arm part 1 

 
 9x 
  17121   Wed Aug 31 01:54:45 2022 KojiUpdateGeneralAlong the Y arm part 2   8x 
  17125   Wed Aug 31 16:11:37 2022 KojiUpdateGeneralVertex Lab area to be cleanedThe analog electronics units piled up along
the wall was moved into 1X3B rack which was
basically empty. (Attachments 1/2/4)
 PXL_20220831_224457839.jpgPXL_20220831_224816960.jpgPXL_20220831_225408183.jpgPXL_20220901_021729652.jpg 
  17128   Fri Sep 2 15:26:42 2022 YehonathanUpdateGeneralSOS and other stuff in the clean room{Paco, Yehonathan}

BHD Optics box was put into the
x-arm last clean cabinet. (attachment 5)
 osem_sus.jpegmagnet_gluing.jpeg2-3inch_adapter_parts.jpegTTs.jpegBHD_optics.jpeg 
  17129   Fri Sep 2 15:30:10 2022 AnchalUpdateGeneralAlong the X arm part 1[Anchal, Radhika]

Attachment 2: The custom
cables which were part of the intermediate
  
  17130   Fri Sep 2 15:35:19 2022 AnchalUpdateGeneralAlong the Y arm part 2[Anchal, Radhika]

The cables in USPS open box were
important cables that are part of the new
  
  17132   Tue Sep 6 09:57:26 2022 JCSummaryGeneralLab cleaningDB9 Cables have been assorted and placed
behind the Y-Arm. Long BNC Cables and Ethernet
Cables have been stored under the Y-Arm. 
 982146B2-02E5-4C19-B137-E7CC598C262F.jpeg0FBB61AC-E882-458D-A891-7B11F35588FF.jpeg 
  17143   Mon Sep 19 17:02:57 2022 PacoSummaryGeneralPower Outage 220916 -- restored allRestore lab

[Paco, Tega, JC,
Yehonathan]

We followed the instructions 
  
  17145   Tue Sep 20 07:03:04 2022 PacoSummaryGeneralPower Outage 220916 -- restored all[JC, Tega, Paco ]

I would like to mention that during
the Vacuum startup, after the AUX pump was
  
  17162   Wed Sep 28 19:15:56 2022 KojiUpdateGeneralTesting 950nm laser found in trash pileI don't know what was wrong with the
past setup but the 950nm laser (QPHOTONICS
QFLD-950-3S) just worked fine up to ~300MHz
 PXL_20220929_013850989.MP.jpgPXL_20220929_013859439.jpgPXL_20220929_013911125.jpg 
  2601   Fri Feb 12 18:58:46 2010 kiwamuUpdateGreen Lockingtake some optics away from the ETM end tableIn
the last two days Steve and I took some optics
away from the both ETM end table.
 DSC_1164.JPGDSC_1172.JPG 
  2604   Tue Feb 16 09:51:22 2010 AlbertoUpdateGreen Lockingtake some optics away from the ETM end table


   
        
            
  
  2606   Tue Feb 16 11:12:51 2010 kiwamuUpdateGreen LockingRe:take some optics away from the ETM end table

    
        
  
  2609   Tue Feb 16 16:24:30 2010 kiwamuUpdateGreen LockingRe:Re:take some optics away from the ETM end tableI put the TRY_PD back to the end table
and aligned it. Now it seems to be working
well.
  
  2619   Fri Feb 19 16:40:43 2010 kiwamuUpdateGreen Lockingrearrange the optics on the end tableKoji and kiwamu
The existing
 DSC_1202.JPGDSC_1207.JPG 
  2706   Wed Mar 24 03:58:18 2010 kiwamu, matt, kojiUpdateGreen Lockingleave PLL lockedWe are leaving the PLL as it is locked
in order to see the long term stability.
And we will check the results in early morning
 DSC_1402.JPG 
  2707   Wed Mar 24 04:22:51 2010 kiwamu, mattUpdateGreen Lockingtwo NPRO PLL Now some pedestals, mirrors and lenses
are left on the PSL table, since we are on
the middle way to construct a PLL setup which
  
  2708   Wed Mar 24 12:38:17 2010 HartmutConfigurationGreen LockingBroadband PD for green PLLModified one of the PD assemblies carrying
a large SI-Diode (~10mm diameter).
Removed elements used for resonant
 SiAmpl.pngSiPhase.png 
  2710   Wed Mar 24 14:52:02 2010 AlbertoUpdateGreen Lockingtwo NPRO PLL


   
        
            
  
  2712   Wed Mar 24 15:59:59 2010 kiwamu, mattUpdateGreen Lockingleave PLL lockedMatt checked it in this morning and he
found it's been locked during the night.
 
  
  2714   Thu Mar 25 17:29:48 2010 kiwamu, mottUpdateGreen LockingPLL two NPROsIn this afternoon, Mott and I tried to
find a beat note between two NPROs which
are going to be set onto each end table for
  
  2718   Sun Mar 28 17:28:26 2010 matt, kiwamuUpdateGreen Lockingfrequency discriminator for green PLLLast Friday, Matt made a frequency discriminator
circuit on a bread board in order
 6x 
  2728   Mon Mar 29 15:19:33 2010 mevansUpdateGreen Lockingfrequency discriminator for green PLLThanks for the great entry! 
In order to make this work for higher
frequencies, I would add  Hartmut's suggestion
  
  2735   Tue Mar 30 21:11:42 2010 kiwamuSummaryGreen Lockingconversion efficiency of PPKTPWith a
30mm PPKTP crystal the conversion efficiency
 efficiency_waist_edit.png 
  2736   Tue Mar 30 22:13:49 2010 KojiSummaryGreen Lockingconversion efficiency of PPKTPQuestion:
Why does the small spot size for
the case (A) have small efficiency as the
  
  2737   Wed Mar 31 02:57:48 2010 kiwamuUpdateGreen Lockingfrequency counter for green PLLRana
found that we had a frequency counter SR620
which might be helpful for lock acquisition
 FCnoise.png 
  2740   Wed Mar 31 11:52:32 2010 kiwamuSummaryGreen LockingRe:conversion efficiency of PPKTPGood point. There is a trick 
to avoid a divergence.
Actually the radius of the cylindrical
  
  2741   Wed Mar 31 12:30:31 2010 ranaUpdateGreen Lockingfrequency counter for green PLLIts a good measurement - you should adjust
the input range of the 620 using the front
panel 'scale' buttons to see how the noise
  
  2751   Thu Apr 1 15:21:12 2010 ranaUpdateGreen Lockingfrequency counter for green PLL 
  
  2752   Thu Apr 1 16:34:29 2010 HartmutUpdateGreen LockingSilicon PDsjust a few infos on Silicon PDs I looked
up.
If you want to go beyond the 100MHz
  
  2757   Thu Apr 1 20:29:02 2010 HartmutUpdateGreen Lockingsimple PD test circuitI made a simple PD test circuit which may
allow to test PD response up to few 100MHz.
Its not for low noise, only for characterising
 pdtest.png 
  2788   Mon Apr 12 14:20:10 2010 kiwamuUpdateGreen LockingPZT response for the innolightI measured a
jitter modulation caused by
  
  2793   Mon Apr 12 19:50:30 2010 AidanSummaryGreen LockingTemperature sweep of the Lightwave: df/dT = 2.8GHz/KThe beams from the Innolight and Lightwave
NPROs were both incident on a 1GHZ New Focus
PD. Mott and I swept the temperature of the
 LightWave_temp_sweep.pdfLightWave_Temp.m 
  2794   Mon Apr 12 20:48:51 2010 Aidan, MottSummaryGreen LockingTemperature sweep of the Innolight: df/dT ~ 3.3GHz/K

    
        
 Innolight_temp_sweep.pdfInnolight_Temp.m 
  2797   Tue Apr 13 12:39:51 2010 Aidan, MottSummaryGreen LockingTemperature sweep of the Innolight: df/dT ~ 3.3GHz/KPlease put those numbers onto wiki somewhere
at the green page or laser characterization
page.
  
  2799   Tue Apr 13 19:53:06 2010 MottUpdateGreen LockingPZT response for the innolight and lightwave 
 I redid the PZT Phase Modulation
measurement out to 5 MHz for both the Innolight
 6x 
  2804   Sat Apr 17 18:30:12 2010 ZachUpdateGreen Locking1W NPRO output profileNOTE:
This measurement is wrong and
only remains for documentation purposes.
 profile_fit_4_17_10.png 
  2807   Mon Apr 19 11:31:04 2010 AidanUpdateGreen Locking1W NPRO output profile

    

       
            
  
  2809   Mon Apr 19 16:27:13 2010 AidanUpdateGreen LockingRaicol crystals arrived and we investigated themJenne, Koji and I opened up the package
from Raicol and examined the crystals under
the microscope. The results were mixed and
  
  2816   Tue Apr 20 11:14:31 2010 AidanUpdateGreen LockingRaicol crystals arrived and we investigated them 
 Here
is Crystal 724 polished side 2 with all photos
  
  2818   Tue Apr 20 13:02:14 2010 ZachUpdateGreen Locking1W NPRO output profileEDIT:
I used an IFIT (inverse fast idiot transform)
to change the x-axis of the plot from Hz
 profile_fit_4_19_10.png 
  2819   Tue Apr 20 13:37:36 2010 JenneUpdateGreen Locking1W NPRO output profile


   
        
            
  
  2821   Tue Apr 20 19:37:02 2010 KojiUpdateGreen Locking1W NPRO output profileBeautiful fitting.

  
  2823   Wed Apr 21 10:09:23 2010 kiwamuUpdateGreen Lockingwaist positon of Gaussian beam in PPKTP crystalsTheoretically the waist position of
a Gaussian beam (1064) in our PPKTP crystal
differs by ~6.7 mm from that of the incident
 focal_positin_edit.png 
  2835   Fri Apr 23 18:30:49 2010 Aidan, Jenne, KojiSummaryGreen LockingGreen means GO!Jenne, Koji and I assembled the Covesion
Oven today, inserted a PPKTP crystal from
Raicol, aligned the crystal to a 50mW focus
 IMG_2405.jpgIMG_2417.jpg 
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