Differences between revisions 64 and 109 (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.
Viewable Monitors
Viewports on Vacuum Chambers
Automatic Target System
Beam Mode Profiler
Other local sensors/monitors/actuators?
Any other optics, outside breadboard,...
Squeezing system??
Highly related subsystems
- Beam Shutters(IOO, MIF)
- Initial Alignment(MIF)
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 64 as of 2011-08-29 06:01:34 → 
  Size: 2356
  Editor: TomotadaAkutsu
  Comment:
+   ← Revision 109 as of 2012-02-10 14:35:46 → ⇥
  Size: 2724
  Editor: TomotadaAkutsu
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-= LCGT Auxiliary Optics Subsystem (AOS) =
+= LCGT Auxiliary Optics System (AOS) =
 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|IR Pick-off and transmit telescopes]]
 * [[LCGT/subgroup/AOS/BeamReduceTelescope2|Green Transmit Telescopes]]
 * [[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]]
-Line 23:
+Line 22:
- * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment System]]
 * [[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)]]
+  * <!> 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/CCD1|Viewable Monitors]]
 * [[LCGT/subgroup/AOS/Viewport1|Viewports on Vacuum Chambers]]
 * [[LCGT/subgroup/AOS/BeamTarget1|Automatic Target System]]
 * [[LCGT/subgroup/AOS/BeamModeProfiler1|Beam Mode Profiler]]
-Line 27:
+Line 28:
- * [[LCGT/subgroup/AOS/CCD1|CCD monitors]]
 * [[LCGT/subgroup/AOS/Viewport1|Viewports on Vacuum Chambers]]
+ * Any other optics, outside breadboard,...
 Line 30:
- * [[LCGT/subgroup/AOS/Shutter1|Beam Shutter]]
 * [[LCGT/subgroup/AOS/Optics1|Any other optics, outside breadboard,... ]]
 * [[LCGT/subgroup/AOS/Mirror1|Micro Roughness of Mirrors]]
+ * Highly related subsystems
  * [[LCGT/subgroup/AOS/Shutter1|Beam Shutters]](IOO, MIF)
  * [[LCGT/subgroup/AOS/InitialAlign1|Initial Alignment]](MIF)
 * 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 41:
+Line 44:
+ * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/subgroup/howtojoin|How to join Mailing Lists for LCGT project]]