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| (1) Dichroic mirror for recycling cavities (Kiwamu) * Figure out required spec * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=87589|spec in DCC]] * wedge angle = 2 deg * dichroic mirror quotes: [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=ATF.pdf|ATF]] [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=Laseroptik.pdf|Laseroptik (no wedge)]], [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=Laseroptik2dw.pdf|Laseroptik (new w/ 2 deg wedge)]] * note: 2 deg wedge quote has Fused Silica grade F = 5 ppm homogeneity & micro roughness 0.3 nm RMS, Rana OKed both, Jamie takes care of ordering |
(1) Dichroic mirror for recycling cavities (Jamie) * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=87589|spec in DCC]] * wedge angle = 2 deg * quotes: * [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=ATF.pdf|ATF]] * '''''[[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=Laseroptik.pdf|Laseroptik (final)]]''''' * note: 2 deg wedge quote has Fused Silica grade F = 5 ppm homogeneity & micro roughness 0.3 nm RMS, Rana OKed both, 3 wks delivery, Jamie takes care of ordering * [[Optical_Layout#PR3SR3|Optical table layout needs to be modified]] |
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| * [[Optical_Layout#PR3SR3|Optical table layout needs to be modified]] * Get a quote from ATF. * Qty = 3 (2 + 1 spare ) * Start ordering (in a week) (2) Black glass beam dumps (Koji) |
(2) Black glass beam dumps |
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| * '''''being baked...''''' | |
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| (3) OSEM mount screws (Steve) | (3) OSEM mount screws |
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| * http://131.215.115.52:8080/40m/6232 | * '''''[[http://nodus.ligo.caltech.edu:8080/40m/6472|final design]]''''' * '''''manufactured and being baked...''''' |
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| * Electronics * Cables including vacuum-compatible ones and the non-vacuum ones * Prepare mirrors * Assembly and baking * Prepare feedthrough connectors * Digital controls |
* to get: * tip-tilts from LHO * Electronics * Cables including vacuum-compatible ones and the non-vacuum ones * Prepare mirrors * Assembly and baking * Prepare feedthrough connectors * Digital controls * '''''Suresh is going to LHO April 15-25 for assembly/shipping of tip-tilts...''''' |
Vent plans
Prep for next vent
(1) Dichroic mirror for recycling cavities (Jamie)
- wedge angle = 2 deg
- quotes:
note: 2 deg wedge quote has Fused Silica grade F = 5 ppm homogeneity & micro roughness 0.3 nm RMS, Rana OKed both, 3 wks delivery, Jamie takes care of ordering
(2) Black glass beam dumps
- Large baffle style covers for the suspensions
- Small V-shape pieces for generic purpose
being baked...
(3) OSEM mount screws
- Hex-top, longer, sliver-plated
- Qty = 100
- No-plastic
manufactured and being baked...
(4) Active tip-tilts (Suresh/Jamie)
- to get:
- tip-tilts from LHO
- Electronics
- Cables including vacuum-compatible ones and the non-vacuum ones
- Prepare mirrors
- Assembly and baking
- Prepare feedthrough connectors
- Digital controls
Suresh is going to LHO April 15-25 for assembly/shipping of tip-tilts...
(5) OMC activation (Jenne)
- Calculate the mode matching solutions and prepare appropriate telescopes
- Draw optical layout
- Digital controls
(6) OSEM upgrade (somebody)
- Need a discussion