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Reports until 07:59, Friday 26 August 2016
H1 PSL
peter.king@LIGO.ORG - posted 07:59, Friday 26 August 2016 (29321)
laser adjustments
The front end pump diode temperatures were adjusted to increase the laser power.
  - D1 was 26.6 degC is now 26.4 degC
  - D2 was 24.6 degC is now 24.4 degC
  - D3 was 27.8 degC is now 27.5 degC
  - D4 unchanged
The temperature changes increased the output power by ~300 mW.
Increased the diode currents for the front end laser to bring the power back to where it should be.
  - D1/D2 was 45.5 A is now 46.0 A
  - D3/D4 was 47.5 A is now 49.5 A

    The net result is that the front end laser power increased by 1 W.  That helps to preserve the
injection locking bandwidth a trifle.

    The temperatures of the high power oscillator pump diodes was also adjusted.  A 4 W increase
was obtained.  The diode currents were not touched.
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