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The data for the following measurements is located at [https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/RFsystem/RFphotodiodes/POY/ /svn/trunk/docs/upgrade08/RFsystem/RFphotodiodes/POY/] |
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| ''Z'',,RF,, = (3.860 +- 0.004) kOhms | ''Z'',,RF,, = (3.852 +- 0.005) kOhms |
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| ''I'',,d,, = (2.035 +- 0.006) mA | ''I'',,d,, = (139.4 +- 0.8) uA |
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| chi^2^ / ndf = 3.37 | chi^2^ / ndf = 9.97 |
POY
The data for the following measurements is located at [https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/RFsystem/RFphotodiodes/POY/ /svn/trunk/docs/upgrade08/RFsystem/RFphotodiodes/POY/]
RF Transimpedance
attachment:transimpedance.png
The above fit was done in LISO in root mode. The results of the fit are the following:
factor = (1.11 +- 0.03) Ohms
delay = (370 +- 60) ps
five poles:
frequency (MHz) |
Q |
11.133 +- 0.002 |
15.85 +- 0.09 |
24.82 +- 0.01 |
6.21 +- 0.03 |
41.0 +- 0.5 |
0.469 +- 0.006 |
228.8 +- 0.4 |
2.74 +- 0.03 |
9.77 +- 0.05 |
0.641 +- 0.003 |
five zeros:
frequency (MHz) |
Q |
22.167 +- 0.003 |
52.5 +- 0.7 |
55.06 +- 0.03 |
20.6 +- 0.6 |
0.555 +- 0.007 |
(600 +- 27) x 103 |
9000 +- 4000 |
(86 +- 2) x 103 |
140 +- 50 |
0.09 +- 0.03 |
chi^2/ndf = 557
Alberto's LISO Model
attachment:poy_tf.pdf
Noise
attachment:noise.png
The noise data was fit to attachment:fitfunc.png with the following results:
ZRF = (3.852 +- 0.005) kOhms
Id = (139.4 +- 0.8) uA
chi2 / ndf = 9.97
Alberto's LISO Model
attachment:poy_noise.pdf
RF Behavior with No Light
attachment:timeseries.png
attachment:dark_spectrum.png
Picture of Photodiode
attachment:POY.jpg
Picture taken on 2/3/2011