Differences between revisions 61 and 106 (spanning 45 versions)

LCGT Auxiliary Optics System (AOS)

Contents

LCGT Auxiliary Optics System (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

Most of 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...
Beam Reducing Telescopes
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.
CCD monitors
Viewports on Vacuum Chambers
Beam Shutters
Beam Targets in Arms
Beam Mode Profiler
Initial Alignment
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 61 as of 2011-08-29 04:18:49 → 
  Size: 2288
  Editor: TomotadaAkutsu
  Comment:
+   ← Revision 106 as of 2012-01-24 18:02:07 → ⇥
  Size: 2669
  Editor: TomotadaAkutsu
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-= LCGT Auxiliary Optics Subsystem (AOS) =
+= LCGT Auxiliary Optics System (AOS) =
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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.
 Line 9:
-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 for considering the space allocated for AOS, AOS are required for fully operating LCGT, so we should pack them into the vacuum chambers '''''BY ANY MEANS'''''.
+Most of 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 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|Beam Reducing Telescopes]]
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+  * <!> 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.
-Line 24:
+Line 25:
- * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment Setting]]
 * [[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)]]
+ * [[LCGT/subgroup/AOS/Shutter1|Beam Shutters]]
 * [[LCGT/subgroup/AOS/BeamTarget1|Beam Targets in Arms]]
 * [[LCGT/subgroup/AOS/BeamModeProfiler1|Beam Mode Profiler]]
 * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment]]
-Line 28:
+Line 30:
+ * Any other optics, outside breadboard,...
-Line 29:
+Line 32:
- * [[LCGT/subgroup/AOS/Shutter1|Beam Shutter]]
 * [[LCGT/subgroup/AOS/Optics1|Any other optics, outside breadboard,... ]]
 * [[LCGT/subgroup/AOS/Mirror1|Micro Roughness of Mirrors]]
+ * 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 40:
+Line 43:
+ * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/subgroup/howtojoin|How to join Mailing Lists for LCGT project]]