Differences between revisions 18 and 20 (spanning 2 versions)

Electronics

outline

80MHz LIGO VCO box is used to readout the frequency of the beat signal precisely.

=== Noise performance ==

attachment:SR620.png

A Silicon photodiode with the diameter of 10mm is used. To have a fast response up to about 1MHz -150V is applied onto the photo diode.

attachment:RFPD_tf.png

attachment:RFPDnoise.png

Here is the noise model for the RFPD using liso. attachment:liso_RFPD.png

Advanced_Techniques/Green_Locking/Electronics (last edited 2017-04-20 01:58:36 by RanaadhikariATligoDOTorg)

-  ⇤ ← Revision 18 as of 2010-11-24 23:46:16 → 
  Size: 1447
  Editor: KiwamuIzumi
  Comment:
+   ← Revision 20 as of 2010-11-24 23:53:28 → ⇥
  Size: 1947
  Editor: KiwamuIzumi
  Comment:
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+Additions are marked like this.
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+=== Filter respons ===
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+=== Noise performance ===

=== lock detection and boost ===
 . rms detection
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+=== Filter Shape ===
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- . what kind of modification
+=== Noise performance ==

=== LPF for RF cutoff ===

=== Low frequency mixer ===

=== Remotely controlled Boost switch ===
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+== DC PDs ==
=== PDA36A ===

||<-4> parameters ||
|| trans impedance gain || || [V/A] ||
|| responsibility || || [A/W]||
|| quantum efficiency || || [%]||

[[BR]]
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+[[BR]]
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== Power Supply and Cables ==
=== HV cables (-150V) for photodiode bias ===
=== 15V and 24V lines ===