| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8111
|
Tue Feb 19 17:14:56 2013 |
Chloe | Update | | QPD Circuit | I finished working out the circuit and
figured out where the broken connections
were. This is diagrammed in my notebook (will |
|
|
8137
|
Fri Feb 22 13:03:49 2013 |
Manasa | Update | | MC REFL PD murder |
[Yuta, Manasa]
We turned IFO power back to 1.25W |
|
|
8139
|
Fri Feb 22 17:33:38 2013 |
Chloe | Update | | QPD circuit diagram | Today I tested the circuitry within the
QPD to make sure I had put it back together
correctly. The output was able to detect |
|
|
8173
|
Tue Feb 26 17:36:28 2013 |
Chloe | Update | | QPD Circuit | I corrected the circuit diagram I constructed
last time - it would read 0 output most of
the time because I made a mistake with the |
|
|
8185
|
Wed Feb 27 14:59:01 2013 |
Evan | Update | | Altered MC demodulation phase | I took out a short (~12 cm) SMA cable
from the "LO input" path into the
MC demod board in an attempt to maximize |
|
|
8186
|
Wed Feb 27 17:43:54 2013 |
Riju | Update | | Photodiode transimpedance | Here is the transimpedance for the other
PD used for MC REFL |
|
|
8187
|
Wed Feb 27 18:01:46 2013 |
Koji | Update | | Photodiode transimpedance | How
much is the exact resonant frequency?
And |
|
|
8188
|
Wed Feb 27 18:17:05 2013 |
Riju | Update | | Photodiode transimpedance |
|
|
|
8189
|
Wed Feb 27 18:38:51 2013 |
Riju | Update | | Photodiode transimpedance |
|
|
|
8233
|
Tue Mar 5 17:23:06 2013 |
Chloe | Update | | QPD Adding/Subtracting Circuit | Today I finished building the adding/subtracting
circuit for the QPD and tested that the QPD
could see a laser moving across its visual |
|
|
8295
|
Thu Mar 14 16:56:16 2013 |
Chloe | Update | | QPD Circuit Design | I have sketched out the circuit design
for the QPD. However, it seems like even
when using a different opamp configuration, |
|
|
8338
|
Mon Mar 25 16:51:43 2013 |
Chloe | Update | | Final QPD Circuit Design | This is the final version of the QPD circuit
I'm going to build. After playing around
with the spatial arrangement, this should |
|
|
8346
|
Mon Mar 25 23:27:26 2013 |
Chloe | Update | | QPD Circuit | In order to test the mount vibrations,
I will likely try and make a different circuit
work (with the summing/subtracting on an |
|
|
8358
|
Tue Mar 26 17:32:30 2013 |
Chloe | Update | | QPD/ECDL Progress | I built the summing/subtracting circuit
on the breadboard, and hooked this up with
one of the other QPDs I found (image of setup |
|
|
8381
|
Mon Apr 1 16:13:50 2013 |
Chloe | Update | | QPD | Because we would like to get started on
testing mount vibrations as soon as possible,
I've been trying to get one of the other |
|
|
8403
|
Wed Apr 3 16:03:59 2013 |
Chloe | Update | | QPD Voltage Regulators | The voltage regulator on the QPD breadboard
seems to be having problems... yesterday
Eric helped me debug my circuit and discovered |
|
|
8406
|
Wed Apr 3 18:27:03 2013 |
Koji | Update | | QPD Voltage Regulators | Breadboards may not be suitable for a reliable
work. Why don't you switch to any protoboard
and real soldering? |
|
|
8478
|
Tue Apr 23 16:31:13 2013 |
Eric | Configuration | | PD frequency response | [Eric, Riju]
Summary: Routing Fibers on AP table
for Photo Diode Frequency Response Measurement |
|
|
8484
|
Wed Apr 24 14:24:40 2013 |
Riju | Update | | PD frequency response | Here I am attaching the first schematic
diagram of the PD frequency response set-up,
I will keep updating it with relevant informations |
|
|
8492
|
Thu Apr 25 17:56:28 2013 |
Riju | Configuration | | PD frequency response | [Eric, Riju]
Today we have routed the fibers from
1x16 fiber splitter to POX table for POX11 |
|
|
8493
|
Thu Apr 25 18:58:06 2013 |
Koji | Configuration | | PD frequency response | No.... what I told was to put the roll
next
to the splitter, |
|
|
8497
|
Fri Apr 26 17:08:42 2013 |
Riju | Configuration | | PD frequency response |
|
|
|
8511
|
Tue Apr 30 12:25:23 2013 |
Chloe | Update | | QPD | Annalisa and I met yesterday and fixed
the voltage regulator on the breadboard so
the QPD circuit is working. We will meet |
|
|
8532
|
Tue May 7 03:08:12 2013 |
Jenne | Update | | PRM yaw responsible for RIN | Koji spent some time earlier this evening
exploring where the excess RIN that we see
in the PRC is coming from. |
|
|
8604
|
Tue May 21 14:50:52 2013 |
Max Horton | Update | | Importing New Code | There was an issue with running the new
summary pages, because laldetchar was not
included (the website I used for instructions |
|
|
8678
|
Wed Jun 5 14:39:41 2013 |
Max Horton | Update | | Importing New Code | Most dependencies are met. The next
issue is that matplotlib.basemap is not installed,
because it is not available for our version |
|
|
8762
|
Thu Jun 27 05:44:51 2013 |
rana | Update | | 40MARS wireless network problems |
|
|
|
8782
|
Fri Jun 28 11:33:32 2013 |
Steve | Update | | 40MARS wireless network problem |
|
|
|
8795
|
Wed Jul 3 11:07:17 2013 |
Alex | Summary | | Photodetector Characterization | [Alex, Koji]
We characterized Koji's BBPD
MOD for REFL165 (see attachment). |
|
|
8806
|
Mon Jul 8 16:27:49 2013 |
Alex | Update | | Planned rack additions | Alex and Eric
For the photodetector frequency response
automation project, we plan to add modules |
|
|
8829
|
Thu Jul 11 12:00:50 2013 |
Alex | Update | | Planned rack additions | [Eric, Alex]
We mounted our Laser Module and Laser
Power Source in rack 1y1. We plan to add |
|
|
8832
|
Thu Jul 11 23:50:57 2013 |
gautam | Configuration | | PZT Driver Board-changes made | Summary:
|
|
|
8850
|
Mon Jul 15 16:51:37 2013 |
Alex | Configuration | | Planned AS Table addition | [Eric, Alex]
We are planning to add our reference
PD to the southern third of the AS Table |
|
|
8855
|
Tue Jul 16 10:16:23 2013 |
Koji | Update | | Beatbox XARM whitening modified | The
X arm whitening filters of the beatbox were
modified. |
|
|
9368
|
Tue Nov 12 21:50:01 2013 |
rana | Update | | zita network configured |
I installed 'nfs-client' on
zita (the StripTool terminal). It now has |
|
|
10657
|
Fri Oct 31 11:46:15 2014 |
manasa | Update | | Rattling HEPA : Eventually stops | The PSL HEPA stopped
working while it was running |
|
|
11392
|
Tue Jul 7 17:22:16 2015 |
Jessica | Summary | | Time Delay in ALS Cables | I measured the transfer functions in the
delay line cables, and then calculated the
time delay from that. |
|
|
12352
|
Fri Jul 29 03:44:04 2016 |
Aakash | Summary | | About Acromag | SURF 2016 | I tried to recompile the modbusApp binary
for linux-arm acrhitecture since I suspected
someting wrong with it. But still the problem |
|
|
12825
|
Mon Feb 13 17:19:41 2017 |
yinzi | Configuration | | configuring ethernet for raspberry pi | Gautam and I were able to get the Raspberry
Pi up and running today, including being
able to ssh into it from the control room. |
|
|
12949
|
Fri Apr 21 13:59:47 2017 |
Eric Gustafson | Summary | | 1064 nm Semiconductor Laser Fiber Distribution System and Mirror Tomography | 1064 nm Semiconductor Laser Fiber
Distribution System and Mirror Tomography
Below threshold these Semiconductor |
|
|
13686
|
Mon Mar 19 07:37:00 2018 |
Angelina Pan | Summary | | Proposed QPD Optical Arrangement | I am currently working on an optical arrangement
consisting of a QPD that measures the fluctuations
of an incoming HeNe laser beam that |
|
|
13699
|
Thu Mar 22 17:47:16 2018 |
Angelina Pan | Summary | | Proposed QPD Optical Arrangement | |
|
|
13915
|
Mon Jun 4 19:41:01 2018 |
keerthana | Update | | Finesse code for cavity scan | The cavity scan data obtained from the
Finesse simulation is attached here. Fig1
indicates the cavity scan data in the absence |
|
|
13928
|
Thu Jun 7 20:19:53 2018 |
pooja | Update | | | Just to inform, I'm working in optimus
to develop python code to train the neural
network since it requires a lot of memory. |
|
|
13956
|
Wed Jun 13 18:08:36 2018 |
keerthana | Update | | Finesse code for cavity scan | The unit mentioned in the x-axis was wrong.
So I have remade the graphs. The point where
frequency equals to zero is actually the |
|
|
13994
|
Thu Jun 21 09:33:02 2018 |
Jon | Update | | AUX Mode Scans of YARM, PRC cavities | [Jon, Keerthana, Sandrina]
Yesterday we carried out preliminary
proof-of-concept measurements using |
|
|
14005
|
Fri Jun 22 10:42:52 2018 |
pooja | Update | | Developing neural networks | Aim: To find a model that trains the simulated
data of Gaussian beam spot moving in a vertical
direction by the application of a sinusoidal |
|
|
14045
|
Sun Jul 8 22:27:25 2018 |
keerthana | Update | | AUX diagram | (Analisa, Keerthana, Sandrine)
So far we tried four different
techniques to scan the AUX laser. They are, |
|
|
14058
|
Thu Jul 12 15:15:47 2018 |
Sandrine | Update | | Beat Note Measurements for Cavity Scans | (Gautam, Sandrine)
We calculated the expected power
of the beat note for Annalisa's Y arm |
|
|
14111
|
Sat Jul 28 22:16:49 2018 |
John Martyn | Update | | Characterization of Transimpedance Amplifier | Kevin and I meaured the transfer function
of the photodiode circuit using the Jenne
laser and agilent in the 40m lab. The attached |
|