Differences between revisions 9 and 18 (spanning 9 versions)
Revision 9 as of 2011-06-03 01:45:22
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Editor: RanaAdhikari
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Revision 18 as of 2011-11-05 02:23:50
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Editor: KojiArai
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## page was renamed from Electronics/REFL55
attachment:schematic.pdf
= REFL55 =
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== RF Transimpedance == == Modification history ==
 * The Dark Ages
 * May 2, 2011 New REFL55 built by Rana, characterized by Koji and Suresh
   * http://nodus.ligo.caltech.edu:8080/40m/4605
   * http://nodus.ligo.caltech.edu:8080/40m/4845
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attachment:transimpedance.png == Schematic ==
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== Noise == The schematic is missing.
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attachment:noise.png == Characteristics ==
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The noise data was fit to attachment:fitfunc.png with the following results:  * DC output / transimpedance: 50 V/A
 * RF output / transimpedance: 615 V/A (on a 50 Ohm load)
 * RF ouput / shotnoise intercept current 1.59mA
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''Z'',,RF,, = (663 +- 1) Ohms [attachment:REFL55_response.pdf PDF file]
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''I'',,d,, = (13.77 +- 0.05) mA attachment:REFL55_transimpedance.png
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chi^2^ / ndf = 3.77 attachment:current_noise_REFL55.png
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== RF Behavior with No Light == attachment:idet_REFL55.png
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attachment:timeseries.png == LISO fitting ==
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attachment:dark_spectrum.png LISO fitting of the RF transimpedance
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== Picture of Photodiode ==

attachment:REFL55.jpg

Picture taken on 3/30/2011
attachment:REFL55.fil

REFL55

Modification history

Schematic

The schematic is missing.

Characteristics

  • DC output / transimpedance: 50 V/A
  • RF output / transimpedance: 615 V/A (on a 50 Ohm load)
  • RF ouput / shotnoise intercept current 1.59mA

[attachment:REFL55_response.pdf PDF file]

attachment:REFL55_transimpedance.png

attachment:current_noise_REFL55.png

attachment:idet_REFL55.png

== LISO fitting ==

LISO fitting of the RF transimpedance

attachment:REFL55.fil

Electronics/RFPD/REFL55 (last edited 2012-01-03 23:02:44 by localhost)