Differences between revisions 56 and 88 (spanning 32 versions)

LCGT Auxiliary Optics Subsystem (AOS)

Contents

LCGT Auxiliary Optics Subsystem (AOS)

Objectives

The objectives of the subgroup "Auxiliary Optics System" (AOS) is to have the other LCGT subgroups design and complete the auxiliary optics that physically, logically and consistently glue the main parts of the LCGT interferometer together.

General Description

All the AOS shall be fit to the vacuum chambers that had been already determined when the AOS group was established. Even if the vacuum chamber was not designed considering the space allocated for AOS, AOS are required for fully operating LCGT, so we shall, by any means, pack them into the vacuum chambers if required.

References

Aux. opt. list from MIF's point of view	Layout Meeting
Optical Parameters	Parameter Meeting
LCGT SVN	Terminology	Discussion with Rana 2010

Subsystems

Stray Light Control
- Including beam baffles, output Faraday isolators, and calculation of BRDF of test masses...
IR Pick-off and transmit telescopes
Green Transmit Telescopes
- Auxiliary laser-locking system itself should be considered in MIF or IOO. The effort of system design should be separated from that of engineering and fabrication from the WBS point of view (or what-you-call system engineering) even if the person assigned to both is the same.
Optical Lever
- Optical lever is a kind of local sensors, but unlike other local sensors, it requires long beam lines as lever's arms, thus this should be considerd in AOS.
Initial Alignment System
CCD monitors
Viewports on Vacuum Chambers
Beam Shutter
Other local sensors/monitors/actuators?
Any other optics, outside breadboard,...
Squeezing system??
Maybe mainly VIS group's charge and not AOS's:
- Local Sensors and Actuators (LIGO's OSEM-like things utilized in vibration isolation system)
- Violine mode sensors or Wire position sensors (utilized in vibration isolation system or in noise-hunting phase)

Meetings

LCGT-AOS Meetings

-  ⇤ ← Revision 56 as of 2011-08-25 16:53:34 → 
  Size: 1802
  Editor: TomotadaAkutsu
  Comment:
+   ← Revision 88 as of 2011-08-29 06:56:02 → ⇥
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  Editor: TomotadaAkutsu
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-The objectives of the subgroup "Auxiliary Optics System" is to have the other LCGT subgroups design and complete the auxiliary optics that physically, logically and consistently glue the main parts of the LCGT interferometer together.
+The objectives of the subgroup "Auxiliary Optics System" (AOS) is to have the other LCGT subgroups design and complete the auxiliary optics that physically, logically and consistently glue the main parts of the LCGT interferometer together.

== General Description ==
All the AOS shall be fit to the vacuum chambers that had been already determined when the AOS group was established.
Even if the vacuum chamber was not designed considering the space allocated for AOS, AOS are required for fully operating LCGT, so we shall, by any means, pack them into the vacuum chambers if required.
-Line 9:
+Line 13:
-||[[LCGT/subgroup/ifo/MIF/AuxOpticsLists|Aux. opt. list from MIF's point of view]]||[[LCGT/subgroup/vacuum|Layout Meeting]]||
||[[LCGT/subgroup/ifo/MIF/OptParam|Optical Parameters]]||[[LCGT/subgroup/OCG/parametermeeting|Parameter Meeting]]||
||[[LCGT/SVN|LCGT SVN]] ||[[LCGT/Terminology|Terminology]]||
+||[[LCGT/subgroup/ifo/MIF/AuxOpticsLists|Aux. opt. list from MIF's point of view]]||[[LCGT/subgroup/vacuum|Layout Meeting]]|| ||
||[[LCGT/subgroup/ifo/MIF/OptParam|Optical Parameters]]||[[LCGT/subgroup/OCG/parametermeeting|Parameter Meeting]]|| ||
||[[LCGT/SVN|LCGT SVN]] ||[[LCGT/Terminology|Terminology]]||[[LCGT/iLCGT/Subgroup/DiscussionRana2010 | Discussion with Rana 2010]]||
-Line 16:
+Line 19:
- * [[LCGT/subgroup/AOS/BeamReduceTelescope1|Transmit Telescopes (transmit IR/Green beams)]]
 * [[LCGT/subgroup/AOS/StrayLight2|Output Faraday Isolaters]]
+  * <!> Including beam baffles, output Faraday isolators, and calculation of BRDF of test masses...
 * [[LCGT/subgroup/AOS/BeamReduceTelescope1|IR Pick-off and transmit telescopes]]
 * [[LCGT/subgroup/AOS/BeamReduceTelescope2|Green Transmit Telescopes]]
   * <!> Auxiliary laser-locking system itself should be considered in MIF or IOO. The effort of system design should be separated from that of engineering and fabrication from the WBS point of view (or what-you-call system engineering) even if the person assigned to both is the same.
-Line 19:
+Line 25:
+  * <!> Optical lever is a kind of local sensors, but unlike other local sensors, it requires long beam lines as lever's arms, thus this should be considerd in AOS. 
 * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment System]]
-Line 21:
+Line 29:
- * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment Setting]]
 * [[LCGT/subgroup/AOS/JBOSESM1|Local Sensors and Actuators (LIGO's OSEM-like things utilized in vibration isolation system)]]
 * [[LCGT/subgroup/AOS/Violine1|Violine mode sensors or Wire position sensors (utilized in vibration isolation system or in  noise-hunting phase)]]
+ * [[LCGT/subgroup/AOS/Shutter1|Beam Shutter]]
-Line 25:
+Line 31:
- * Squeezing sistem??
 * [[LCGT/subgroup/AOS/Shutter1|Beam Shutter]]
 * [[LCGT/subgroup/AOS/Optics1|Any other optics, outside breadboard,... ]]
 * [[LCGT/subgroup/AOS/Mirror1|Micro Roughness of Mirrors]]
+ * Any other optics, outside breadboard,...
 * Squeezing system??
 * Maybe mainly VIS group's charge and not AOS's:
  * [[LCGT/subgroup/AOS/JBOSEM1|Local Sensors and Actuators (LIGO's OSEM-like things utilized in vibration isolation system)]]
  * [[LCGT/subgroup/AOS/Violine1|Violine mode sensors or Wire position sensors (utilized in vibration isolation system or in noise-hunting phase)]]
-Line 35:
+Line 42:
+ * [[https://dcc.ligo.org/|LIGO Document Control Center]]