Some details on the CW laser diode laser (fibre coupled).
The main motivation was its use for the E320 interferometer (OAP1 and 2 alignment), but will serve now as general IR alignment laser for FACET S20.
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Fig 2: Manual (left) and view of the port for the closed loop interlock (RJ-11 port).
Implementation at S20
Laser enclosure with shutter S3 (LSS) enclosing the full laser (see in comparison enclosure for B40 where only fibre as enclosed).
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A motorised beam block for the CW beam can be found on the same controller on Ch 5.
Implementation at B40 (deprecated as of Dec 2021)
Laser enclosure as at B40, with a 2" Macor shutter.
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