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= Beam Reducing Telescopes = = Transmission Monitor System (TMS)=
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Also called "beam reducing telescope (BRT)" in LCGT.
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'''[[../|..Up]]'''
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TBD

== Applicable Documents ==
 * Spec. for vacuum chambers
 * Optical Layout Drawing of the LCGT interferometer
 * Length Sensing and Control doc
 * Alignment Sensing and Control doc
 * CCD Monitor doc
 * Any...
Transmission monitors for IR/Green beams.
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TBD
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Beams for TBD  * Collect 1064nm and 532nm light transmitting ETMs.
 * Monitor the off-centering and pitch/yaw fluctuations of the ITMs/ETMs relative to the preselected optical path.
 * Monitor the shape of the beam modes that transmit the arm cavity.

=== Required channels ===
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 * BS chamber
 *

== Requirements ==
TBD

== Characteristics ==
TBD
 * At the dedicated chambers in back of ETM chambers
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== Inspection plans ==
TBD
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 * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=29666&version=1|LIGO-T1000746-v1, Viewports Subsystem Final Design Document]]  * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=62886|LIGO-E1100537-v10, Transmission Monitor Telescope Suspension (TMS) Final Design]]
 * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=60926|LIGO-G1100439-v4, TMS Telescope Alignment]]
 * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=58277|LIGO-T1100258-v4, Transmission Monitoring Telescope and Suspension - TMS]]

= Transmission Monitor System (TMS)= Related subgroups: IOO, MIF, VAC, CRY, VIS...

Also called "beam reducing telescope (BRT)" in LCGT.


..Up

Scope

Transmission monitors for IR/Green beams.

General Description

Functions

  • Collect 1064nm and 532nm light transmitting ETMs.
  • Monitor the off-centering and pitch/yaw fluctuations of the ITMs/ETMs relative to the preselected optical path.
  • Monitor the shape of the beam modes that transmit the arm cavity.

Required channels

Naming Conventions

TBD

Locations

  • At the dedicated chambers in back of ETM chambers

LCGT/subgroup/AOS/BeamReduceTelescope1 (last edited 2012-09-28 03:45:15 by TomotadaAkutsu)