Differences between revisions 4 and 52 (spanning 48 versions)

Contents

►Main optics
►Folding mirrors
1. Specs of the folding mirrors (as of Dec 16, 2009)
►Miscellaneous Optics (as of Dec 16, 2009)

►Main optics

We use SOS size (d75mm x t25mm) mirrors for the main optics.

Specifications & Data Sheets

[attachment:091111_optics_spec.pdf PDF]Specifications for 40m upgrade[https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/LatestPDFs 40mSVN]COC documents/drawing files[https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/ 40mSVN]Data sheets from ATF [https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/Data_Sheet_sent_by_ATF/ 40mSVN]

Substrate Material

The material of the substrate is Corning 7980 Fused Silica, grade UV-0A.

[http://www.corning.com/docs/specialtymaterials/pisheets/H0607_hpfs_Standard_ProductSheet.pdf Link to the data sheet of Corning 7980]

Radius of Curvatures

Considerations on the parameters of PRC/SRC

Discrepancies between the spec and the delivered optics

We are going to use one of the SRMs as a temporaly PRM.
PRMs and SRMs will have the wedge angle larger than the spec (see below). PRMs were returned for repolish. Thus, their wedge angles might be vary. This is to be confirmed.
ITMs have the wedge angle of ~1deg, instead of the spec "2 deg"

Communication between ATF and Coastline

From: Gene Lapp
Sent: Tuesday, July 28, 2009 4:00 PM
To: Ramin Lalezari Cc: Vern Korn; John Tardif (E-mail)
Subject: Power Recycling Mirrors / Signal Recycling Mirrors

Ramin,

I've run across another small problem with the Power Recycling & Signal Recycling Mirrors.  The wedge angle is called out as 2° 30' ± 5'.  The parts are measuring between 2° 40' and 2° 44' (all ± 0.5').  We have traced this problem to an error in our wedge tool, which is nominally at 2° 40'.

All the mirrors have been measured except for one Signal Recycling Mirror (currently on the polishing machine).  I expect that it will be in the same condition.  The measurements are as follows:

PRMU01    2° 40'
PRMU02    2° 42'
PRMU03    2° 43'
PRMU04    2° 40'  (extra)

SRMU01    -
SRMU02    2° 41'
SRMU03    2° 41'
SRMU04    2° 44'  (extra)

►Folding mirrors

We use 2inch mirrors (d2" x t3/8") mirrors for the PRC/SRC folding mirrors.

Their name has been changed such that the definition agrees with the AdvLIGO naming. (12/01/2009)

Specs of the folding mirrors (as of Dec 16, 2009)

Name	PR2	PR3	SR3	SR2
Size	2"dia. X 3/8" thick	2"dia. X 3/8" thick	2"dia. X 3/8" thick	2"dia. X 3/8" thick
Incident angle	2.5 deg	36.5 deg	44 deg	6 deg
HR Transmission 1064 nm	500ppm	< 100 ppm	< 100ppm	< 100ppm
AR Reflection 1064 nm	< 0.25%	< 0.25%	< 0.25%	< 0.25%
ROC	Flat	Flat	Flat	Flat
Wedge angle	1 deg	1 deg	1 deg	1 deg
Qty.	2	2	2	2

R for 532nm to be considered!

►Miscellaneous Optics (as of Dec 16, 2009)

Reflectivity and Transmissivity measurement for various mirrors with 523nm and 1064nm

Optical Layout

Mode matching and steering mirrors (1064nm)

Name

Type

Size

Incident angle

POL

ROC

Wedge

Substrate

Buy?

Suggested product

Misc.

MMT1

Mirror

2"x3/8"

2.5?

All

YES

~1deg

UV fused silica

YES

CVI Y1S-0?

MMT2

Mirror

2"x3/8"

2.5?

All

YES

~1deg

UV fused silica

YES

CVI Y1S-0?

SM1-PJ

Mirror

1.5"x?"

44.5?

All

YES

~1deg

UV fused silica

YES

CVI Y1S-45?

on Piezo Jena

SM2-PJ

Mirror

1.5"x?"

All

YES

~1deg

UV fused silica

YES

CVI Y1S-0?

on Piezo Jena

SM1-TT

Mirror

2"x3/8"

44.5?

All

YES

~1deg

UV fused silica

YES

CVI Y1S-45?

on ANU-TT

SM2-TT

Mirror

2"x3/8"

All

YES

~1deg

UV fused silica

YES

CVI Y1S-0?

on ANU-TT

Specs of the misc mirrors (1064nm)

Name

Type

Size

Incident angle

POL

ROC

Wedge

Substrate

Buy?

Suggested product

Misc.

IM1

Mirror

2"x3/8"

All

YES

~1deg

UV fused silica

IM2

Mirror

2"x3/8"

All

YES

~1deg

UV fused silica

IM3

BS(PO)

1.5"x?"

1%?

YES

~1deg

UV fused silica

IM4

Mirror

2"x3/8"

20.5

All

YES

~1deg

UV fused silica

IM5

Mirror

1.5"x?"

23.5

All

YES

~1deg

UV fused silica

IPPO

BS(PO)

1.5"x?"

32.5

1%?

YES

~1deg

UV fused silica

IPBS

1.5"x?"

50%

YES

~1deg

BK7

BS1

OM1

Mirror

2"x?"

41.5

All

YES

~1deg

UV fused silica

OM2

Mirror

2"x?"

47.5

All

YES

~1deg

UV fused silica

OM3

Mirror

2"x?"

All

YES

~1deg

UV fused silica

Either on the mount or ANU-TT

OM4-PJ

Mirror

1.5"x?"

40.5

All

YES

~1deg

UV fused silica

on Piezo Jena

OM4-TT

Mirror

1.5"x?"

40.5

All

YES

~1deg

UV fused silica

on ANU-TT

POP-M1

Mirror

2"x?"

26~30

All

YES

~1deg

BK7

POP-M2

Mirror

2"x?"

All

YES

~1deg

BK7

POYM1

Mirror

1.5?2"?x?"

All

YES

~1deg

BK7

The mount to be checked

POXM1

Mirror

1.5?2"?x?"

All

YES

~1deg

BK7

The mount to be checked

Specs of the oplev mirrors (632nm)

Name

Type

Size

Incident angle

POL

ROC

Wedge

Substrate

Buy?

Suggested product

Misc.

BSOL1

Mirror

2"x3/8"

41~43

All

~1deg

BK7

PRMOL1

Mirror

1.5"x?"

56.5

All

~1deg

BK7

PRMOL2

Mirror

1.5"x?"

27.5

All

~1deg

BK7

PRMOL3

Mirror

1.5"x?"

All

~1deg

BK7

ITMYOL1

Mirror

1.5"x?"

27.5

All

~1deg

BK7

ITMYOL2

Mirror

1.5"x?"

All

~1deg

BK7

ITMXOL1

Mirror

2"x?"

20.5

All

~1deg

BK7

ITMXOL2

Mirror

2"x?"

15.5

All

~1deg

BK7

SRMOL1

Mirror

2"x?"

All

~1deg

BK7

SRMOL2

Mirror

2"x?"

34.5

All

~1deg

BK7

-  ⇤ ← Revision 4 as of 2008-05-02 21:43:32 → 
  Size: 754
  Editor: RanaAdhikari
  Comment:
+   ← Revision 52 as of 2009-12-17 01:36:02 → ⇥
  Size: 7330
  Editor: KojiArai
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-== Coatings and Optics ==
This is a work in progress area for what optic and coatings we need.
+<<TableOfContents(2)>>
------
= ►Main optics =
We use SOS size (d75mm x t25mm) mirrors for the main optics.
-Line 4:
+Line 6:
-|| Parameter               || ITMs || ETMs || PRM || SRM || FM (4x) ||
|| HR Transmission 1064 nm || 0.014 *|| 10 ppm || ||  || <0.01 ||
|| HR Transmission 532 nm  || < 1000 ppm|| 0.10 ||  ||  ||  ||
|| AR Reflection 1064 nm   || < 1000 ppm|| < 100 ppm ||  ||  || <0.01 ||
|| AR Reflection 532 nm    || <0.01|| < 1000 ppm ||  ||  ||  ||
|| ROC                     || Flat (>5 km)|| 40 m? ||  ||  || inf||
|| Wedge angle             || 1 deg (+/- 0.2 deg) || 1 deg ||  ||  ||  ||
+== Specifications & Data Sheets ==
<<ImageLink(091111_optics_spec_t.png, Upgrade_09/Optics/Spec_Summary)>>[attachment:091111_optics_spec.pdf PDF]Specifications for 40m upgrade[https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/LatestPDFs 40mSVN]COC documents/drawing files[https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/ 40mSVN]Data sheets from ATF [https://nodus.ligo.caltech.edu:30889/svn/trunk/docs/upgrade08/cocdocs/Data_Sheet_sent_by_ATF/ 40mSVN]
-Line 12:
+Line 9:
-[[BR]]
[[BR]]
* ''T_ITMnom = 0.014 +/- 0.001. All 3 ITMs in the same coating run to match the T, i.e. T_ITMY - T_ITMX < 0.0003.
Tolerance in T_ITMnom is larger.''
+------
== Substrate Material ==
The material of the substrate is Corning 7980 Fused Silica, grade UV-0A.

[http://www.corning.com/docs/specialtymaterials/pisheets/H0607_hpfs_Standard_ProductSheet.pdf Link to the data sheet of Corning 7980]

== Radius of Curvatures ==
[[Upgrade 08/Optics/RCParams|Considerations on the parameters of PRC/SRC]]

== Discrepancies between the spec and the delivered optics ==
 * We are going to use one of the SRMs as a temporaly PRM.
 * PRMs and SRMs will have the wedge angle larger than the spec (see below). PRMs were returned for repolish. Thus, their wedge angles might be vary. This is to be confirmed.

 * ITMs have the wedge angle of ~1deg, instead of the spec "2 deg"

'''Communication between ATF and Coastline'''

{{{
From: Gene Lapp
Sent: Tuesday, July 28, 2009 4:00 PM
To: Ramin Lalezari Cc: Vern Korn; John Tardif (E-mail)
Subject: Power Recycling Mirrors / Signal Recycling Mirrors

Ramin,

I've run across another small problem with the Power Recycling & Signal Recycling Mirrors.  The wedge angle is called out as 2° 30' ± 5'.  The parts are measuring between 2° 40' and 2° 44' (all ± 0.5').  We have traced this problem to an error in our wedge tool, which is nominally at 2° 40'.

All the mirrors have been measured except for one Signal Recycling Mirror (currently on the polishing machine).  I expect that it will be in the same condition.  The measurements are as follows:

PRMU01    2° 40'
PRMU02    2° 42'
PRMU03    2° 43'
PRMU04    2° 40'  (extra)

SRMU01    -
SRMU02    2° 41'
SRMU03    2° 41'
SRMU04    2° 44'  (extra)
}}}

------
= ►Folding mirrors =
We use 2inch mirrors (d2" x t3/8") mirrors for the PRC/SRC folding mirrors.

Their name has been changed such that the definition agrees with the AdvLIGO naming. (12/01/2009)

== Specs of the folding mirrors (as of Dec 16, 2009) ==
|| Name || PR2 || PR3 || SR3 || SR2 ||
|| Size ||2"dia. X 3/8" thick ||2"dia. X 3/8" thick ||2"dia. X 3/8" thick ||2"dia. X 3/8" thick ||
|| Incident angle || 2.5 deg || 36.5 deg || 44 deg || 6 deg ||
|| HR Transmission 1064 nm || 500ppm || < 100 ppm || < 100ppm || < 100ppm ||
|| AR Reflection 1064 nm || < 0.25% || < 0.25% || < 0.25% || < 0.25% ||
|| ROC || Flat || Flat || Flat || Flat ||
|| Wedge angle || 1 deg || 1 deg ||1 deg ||1 deg ||
||Qty. || 2 || 2 || 2 || 2 ||

'''R for 532nm to be considered!'''

------
= ►Miscellaneous Optics (as of Dec 16, 2009) =
[[Upgrade 09/Optics/RTmeasurement|Reflectivity and Transmissivity measurement for various mirrors with 523nm and 1064nm]]

[[Upgrade_09/Optical_Layout|Optical Layout]]

== Mode matching and steering mirrors (1064nm) ==
|| '''Name''' || '''Type''' || '''Size''' || '''Incident angle''' || '''POL''' || '''HR''' || '''AR''' || '''ROC''' || '''Wedge''' || '''Substrate''' || '''Buy?''' ||'''Suggested product''' || '''Misc.''' ||
|| MMT1 || Mirror || 2"x3/8" || 2.5? ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-0? || ||
|| MMT2 || Mirror || 2"x3/8" || 2.5? ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-0? || ||
|| SM1-PJ || Mirror || 1.5"x?" || 44.5? ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-45? || on Piezo Jena ||
|| SM2-PJ || Mirror || 1.5"x?" || 15 ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-0? || on Piezo Jena ||
|| SM1-TT || Mirror || 2"x3/8" || 44.5? ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-45? || on ANU-TT ||
|| SM2-TT || Mirror || 2"x3/8" || 15 ||  P || All || YES ||  - || ~1deg || UV fused silica || YES || CVI Y1S-0? || on ANU-TT ||


== Specs of the misc mirrors (1064nm) ==

|| '''Name''' || '''Type''' || '''Size''' || '''Incident angle''' || '''POL''' || '''HR''' || '''AR''' || '''ROC''' || '''Wedge''' || '''Substrate''' || '''Buy?''' ||'''Suggested product''' || '''Misc.''' ||
|| IM1 || Mirror || 2"x3/8" || 45 || S || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IM2 || Mirror || 2"x3/8" || 25 || S || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IM3 || BS(PO) || 1.5"x?" || 45 || S || 1%? || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IM4 || Mirror || 2"x3/8" || 20.5 || S || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IM5 || Mirror || 1.5"x?" || 23.5 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IPPO || BS(PO) || 1.5"x?" || 32.5 || P || 1%? || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| IPBS || BS || 1.5"x?" || 50 || P || 50% || YES ||  - || ~1deg || BK7 || ? || BS1 || ||
|| OM1 || Mirror || 2"x?" || 41.5 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| OM2 || Mirror || 2"x?" || 47.5 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || ||
|| OM3 || Mirror || 2"x?" || 45 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || Either on the mount or ANU-TT ||
|| OM4-PJ || Mirror || 1.5"x?" || 40.5 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || on Piezo Jena ||
|| OM4-TT || Mirror || 1.5"x?" || 40.5 || P || All || YES ||  - || ~1deg || UV fused silica || ? || || on ANU-TT ||
|| POP-M1 || Mirror || 2"x?" || 26~30 || P || All || YES ||  - || ~1deg || BK7 || ? || ||  ||
|| POP-M2 || Mirror || 2"x?" || 45 || P || All || YES ||  - || ~1deg || BK7 || ? || ||  ||
|| POYM1 || Mirror || 1.5?2"?x?" || 12 || P || All || YES ||  - || ~1deg || BK7 || ? || || The mount to be checked ||
|| POXM1 || Mirror || 1.5?2"?x?" || 12 || P || All || YES ||  - || ~1deg || BK7 || ? || || The mount to be checked ||

== Specs of the oplev mirrors (632nm) ==

|| '''Name''' || '''Type''' || '''Size''' || '''Incident angle''' || '''POL''' || '''HR''' || '''AR''' || '''ROC''' || '''Wedge''' || '''Substrate''' || '''Buy?''' ||'''Suggested product''' || '''Misc.''' ||
|| BSOL1 || Mirror || 2"x3/8" || 41~43 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| PRMOL1 || Mirror || 1.5"x?" || 56.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| PRMOL2 || Mirror || 1.5"x?" || 27.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| PRMOL3 || Mirror || 1.5"x?" || 18   || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| ITMYOL1 || Mirror || 1.5"x?" || 27.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| ITMYOL2 || Mirror || 1.5"x?" || 11   || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| ITMXOL1 || Mirror || 2"x?" || 20.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| ITMXOL2 || Mirror || 2"x?" || 15.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| SRMOL1 || Mirror || 2"x?" || 65 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||
|| SRMOL2 || Mirror || 2"x?" || 34.5 || ? || All || ? ||  - || ~1deg || BK7 || ? || || ||