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IOO (IMMT)
takayuki.furuhata - 20:59 Thursday 17 August 2017 (3257) Print this report
Installation of oplevs for IMMT1,2
[Furuhata, Kokeyama, Telada, Chen, Sakamoto, Nogae, Hirata]

We installed oplevs for IMMT1 and IMMT2.

Oplev for IMMT1 was installed almost.
We haven't placed a mirror to reflect a reflected beam from IMMT2 yet.
Both QPDs were connected to DGS by today's cabling.

Tomorrow, we are doing to place a mirror and calibrate QPD-signals to get the angular state of IMMT1 and IMMT2.
Images attached to this report
Comments to this report:
tomotada.akutsu - 14:23 Friday 18 August 2017 (3258) Print this report

In the figure, the light sources for oplevs are called "laser" but it is not true, as I said countless times crying Not all the light beams are called laser!

They are SLD (or SLED), superluminescent diode ; my suggestion is just to rewrite "light source" or "transmitter".

takayuki.furuhata - 19:53 Friday 18 August 2017 (3264) Print this report
I thank Akutsu-san for his comment.
I rewrote "laser" to "light source" in the figure.
Images attached to this comment
tomotada.akutsu - 21:55 Friday 18 August 2017 (3266) Print this report

Thank you for reacintg my hair-splitting words! devil

keiko.kokeyama - 22:26 Friday 18 August 2017 (3267) Print this report

Here are the photos. Sorry IMMT1 oplev photo is blur...

Oplev centering and calibrations were also done. Report will come soon by the Niigata University team.

Images attached to this comment
tomotada.akutsu - 15:06 Sunday 20 August 2017 (3269) Print this report

Judging from the pics, I cannot resist to say some parts for oplev setup are wrong.

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