Reports until 14:48, Monday 09 July 2018
H1 PSL
jason.oberling@LIGO.ORG - posted 14:48, Monday 09 July 2018 - last comment - 17:07, Monday 09 July 2018(42820)
3IFO Spare Front End Laser Inspection

This morning I did a quick inspection of the spare 3IFO 35W FE laser (it lives in the H1 Laser Diode Room for cleanliness purposes).  All of the parts are there, but there is one issue with it: the NPRO is not aligned to the MOPA, making this laser currently unusable.  Before this laser can be utilized in any fashion the NPRO needs to be aligned to the MOPA and the mode matching adjusted as needed.  To make this clear, Rick is adding a tag (shown in the attached picture) indicating that the NPRO is not aligned to the amplifier; this laser should not be used until this alignment is complete.

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richard.savage@LIGO.ORG - 17:07, Monday 09 July 2018 (42825)

Three photos are attached.

The first shows the serial number of the NPRO: 1639B;

the second shows the label on the 35-W ampifier;

the third shows the caution tag attached over the NPRO shutter handle.

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