Displaying report 1-1 of 1.
Reports until 08:07, Tuesday 30 September 2014
H1 PSL (PSL)
peter.king@LIGO.ORG - posted 08:07, Tuesday 30 September 2014 (14216)
PSL Diagnostic Breadboard Scan
Relative power noise looks nominal.  Better than the reference measurement below 10 Hz and a factor of a few worse between 10 Hz and 4 kHz.  The ISS was locked at the time with a diffracted power of ~9%, REFSIGNAL -2.03 V, and output DC of 10.01 V on PDA, 10.19 V on PDB.  Gain slider on 10 dB.

Frequency noise is better than the reference measurement above ~500 Hz, worse below.  Otherwise the same as per previous weeks.

Beam pointing looks nominal.  All better than the reference measurement.

Mode scan looks nominal.  Higher order mode count slightly higher than last week, 55 cf. 56.  Higher order mode power slightly higher too, 4.7% cf. 4.6%.  Nothing to worry about.

ISS relative power noise looks good.  The out of loop measurement (PDB) is flat from 3 Hz to ~100 Hz, at ~1.3E-8.  Rising to ~2E-8 at 1 kHz.
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Displaying report 1-1 of 1.