Size: 1418
Comment:
|
Size: 3704
Comment:
|
Deletions are marked like this. | Additions are marked like this. |
Line 2: | Line 2: |
'''''Related subsystems:''''' IOO, MIF, VAC, CRY, VIS... | '''''Related subgroups:''''' MIR, IOO, MIF, VAC, CRY, VIS... |
Line 7: | Line 7: |
This subsystem provides the optical viewports to pass through the optical beams from the vacuum chambers in which LCGT main interferometer is stored. | This subsystem provides the optical viewports mounted on the vacuum chambers to pass the optical beams into or from the LCGT in-vacuum interferometer. |
Line 10: | Line 10: |
The viewport subsystems that will be applied to the cryo-vacuum chambers for ITMs/ETMs of the future LCGT are '''NOT''' included in the scope of this subsystem so far. | The viewport subsystems that will be dedicated to the cryo-vacuum chambers for the future LCGT are '''NOT''' included in the scope of this subsystem so far. |
Line 15: | Line 15: |
* Length Sensing doc * Alignment Sensing doc |
* Length Sensing and Control doc * Alignment Sensing and Control doc |
Line 22: | Line 22: |
We can extract optical beams from the interferometer inside the vacuum chamber at the viewports. The optical beams are for length control scheme of the interferometer, alignment control scheme of the mirrors, optical levers for LCGT-SUS, and other monitoring devices (CCD or equivalent video cameras). |
At the viewports, we can extract optical beams from the interferometer placed inside the vacuum chambers. The optical beams would be utilized for length and alignment sensing and control scheme, optical levers for suspensions, and other monitoring devices (CCD or equivalent video cameras). |
Line 25: | Line 25: |
Stray lights? |
For example, the viewport would be equipped with |
Line 31: | Line 30: |
=== Functions === Beams for * Transmission of IR/Green lasers * Optical Lever transmitter/receiver * Video camera * Illumination * Diagnostic * (Squeeze) * (Spare) |
|
Line 32: | Line 42: |
TBD | |
Line 34: | Line 45: |
* BS chamber * |
Here, the number of viewports required by each subsystem at each vacuum chamber is listed. ||<#FFFF00>Chamber Name||<#FFFF00>Type||<#FFFF00>Quantity||<#FFFF00>Purpose||<#FFFF00>Used By|| ||PRM||1064nm AR||1||REFL port||ISC|| ||PRM||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||PRM ||Visible||1||CCD||Everyone|| ||PR2||1064nm&532 dichroic AR||1 or 2||POP/Green||ISC|| ||PR2||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||PR2 ||Visible||1||CCD||Everyone|| ||PR3||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||PR3 ||Visible||1||CCD||Everyone|| ||BS ||1064nm AR||1||POX/POY beams||ISC|| ||BS ||!OpLev wavelength||2||Optical Lever||AOS/SUS|| ||BS ||Visible||1||CCD||Everyone|| ||ITMX||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||ITMX||Visible||1||CCD||Everyone|| ||ITMY||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||ITMY||Visible||1||CCD||Everyone|| ||ETMX||1064nm&532 dichroic AR||1||Transmission||ISC|| ||ETMX||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||ETMX||Visible||1||CCD||Everyone|| ||ETMY||1064nm&532 dichroic AR||1||Transmission||ISC|| ||ETMY||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||ETMY||Visible||1||CCD||Everyone|| ||SRM||1064nm AR||1||AS port||ISC|| ||SRM||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||SRM ||Visible||1||CCD||Everyone|| ||SR2||1064nm&532 dichroic AR||1 or 2||POS/Green||ISC|| ||SR2||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||SR2 ||Visible||1||CCD||Everyone|| ||SR3||!OpLev wavelength||2||!OpLev||AOS/SUS|| ||SR3 ||Visible||1||CCD||Everyone|| == Requirements == TBD |
Line 38: | Line 82: |
TBD == Inspection plans == TBD == Procurement process and plans == Each subgroup (IOO, MIF, VIS) will collect up the information of the required viewports for themselves, and show it to AOS; then AOS will send whole of it to VIS, and VIS will set the procurement process forward. |
|
Line 41: | Line 95: |
* [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=8509|LIGO-T1000022-v4, Viewports Subsystem Requirements Document]] * [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=12798|LIGO-T1000334-v1, Review Report Interferometer Sensing and Control Final Design]] |
Viewports (at Room Temperature)
Related subgroups: MIR, IOO, MIF, VAC, CRY, VIS...
Contents
Scope
This subsystem provides the optical viewports mounted on the vacuum chambers to pass the optical beams into or from the LCGT in-vacuum interferometer. The optical beams include...
The viewport subsystems that will be dedicated to the cryo-vacuum chambers for the future LCGT are NOT included in the scope of this subsystem so far.
Applicable Documents
- Spec. for vacuum chambers
- Optical Layout Drawing of the LCGT interferometer
- Length Sensing and Control doc
- Alignment Sensing and Control doc
- Optical lever doc
- CCD Monitor doc
- Any...
General Description
At the viewports, we can extract optical beams from the interferometer placed inside the vacuum chambers. The optical beams would be utilized for length and alignment sensing and control scheme, optical levers for suspensions, and other monitoring devices (CCD or equivalent video cameras).
For example, the viewport would be equipped with
- AR coating for 1064 nm and 532 nm
- Wedge angle
Details are described in Characteristics section.
Functions
Beams for
- Transmission of IR/Green lasers
- Optical Lever transmitter/receiver
- Video camera
- Illumination
- Diagnostic
- (Squeeze)
- (Spare)
Naming Conventions
TBD
Locations
Here, the number of viewports required by each subsystem at each vacuum chamber is listed.
Chamber Name |
Type |
Quantity |
Purpose |
Used By |
PRM |
1064nm AR |
1 |
REFL port |
ISC |
PRM |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
PRM |
Visible |
1 |
CCD |
Everyone |
PR2 |
1064nm&532 dichroic AR |
1 or 2 |
POP/Green |
ISC |
PR2 |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
PR2 |
Visible |
1 |
CCD |
Everyone |
PR3 |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
PR3 |
Visible |
1 |
CCD |
Everyone |
BS |
1064nm AR |
1 |
POX/POY beams |
ISC |
BS |
OpLev wavelength |
2 |
Optical Lever |
AOS/SUS |
BS |
Visible |
1 |
CCD |
Everyone |
ITMX |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
ITMX |
Visible |
1 |
CCD |
Everyone |
ITMY |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
ITMY |
Visible |
1 |
CCD |
Everyone |
ETMX |
1064nm&532 dichroic AR |
1 |
Transmission |
ISC |
ETMX |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
ETMX |
Visible |
1 |
CCD |
Everyone |
ETMY |
1064nm&532 dichroic AR |
1 |
Transmission |
ISC |
ETMY |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
ETMY |
Visible |
1 |
CCD |
Everyone |
SRM |
1064nm AR |
1 |
AS port |
ISC |
SRM |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
SRM |
Visible |
1 |
CCD |
Everyone |
SR2 |
1064nm&532 dichroic AR |
1 or 2 |
POS/Green |
ISC |
SR2 |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
SR2 |
Visible |
1 |
CCD |
Everyone |
SR3 |
OpLev wavelength |
2 |
OpLev |
AOS/SUS |
SR3 |
Visible |
1 |
CCD |
Everyone |
Requirements
TBD
Characteristics
TBD
Inspection plans
TBD
Procurement process and plans
Each subgroup (IOO, MIF, VIS) will collect up the information of the required viewports for themselves, and show it to AOS; then AOS will send whole of it to VIS, and VIS will set the procurement process forward.