Diff for "Aux_Optics"

Differences between revisions 1 and 28 (spanning 27 versions)

Coatings and Optics

This is a work in progress area for what optic and coatings we need.

Parameter	ITMs	ETMs	PRM	SRM	FM (4x)
HR Transmission 1064 nm	0.014 *	10 ppm	0.055 +/-0.003	0.10 +/- 0.005	<0.01
HR Transmission 532 nm	< 1000 ppm	0.10	n/a	n/a	n.r.
AR Reflection 1064 nm	< 1000 ppm	< 100 ppm	< 300 ppm	< 300 ppm	<0.01
AR Reflection 532 nm	<0.01	< 1000 ppm	n/a	n/a
ROC	Flat (>5 km)	57.5 m?	115.5 96.3 +50/-0 (96**)	142 117.1+50/-20 (116.3**)	inf
Wedge angle	1 deg (+/- 0.2 deg)	1 deg	1 deg	1 deg	1 deg

BR BR*T_ITMnom = 0.014 +/- 0.002. 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.** Based on ETM and ITM ROC, assuming inf. thin optics.

Draft zip file of specs in .doc format: attachment:40mCOC-080723.zip (need to change the ext to .doc)
Also in [javascript:void(0);/*1254859239474*/ [PDF]]

Specs of the folding mirrors for the recycling cavities

Name	PR1	PR2	SR1	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	39.9 deg	17.1 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

Considerations on the parameters of PRC/SRC

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)

-  ⇤ ← Revision 1 as of 2008-04-28 18:12:13 → 
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+   ← Revision 28 as of 2009-10-06 20:00:51 → ⇥
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-|| 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                     || inf|| 40 m? ||  ||  || inf||
|| Wedge angle             || 1 deg || 1 deg ||  ||  ||  ||
+|| Parameter || ITMs || ETMs || PRM || SRM || FM (4x) ||
|| HR Transmission 1064 nm || 0.014 * || 10 ppm ||0.055 +/-0.003 ||0.10 +/- 0.005 || <0.01 ||
|| HR Transmission 532 nm || < 1000 ppm || 0.10 ||n/a ||n/a ||n.r. ||
|| AR Reflection 1064 nm || < 1000 ppm || < 100 ppm ||< 300 ppm ||< 300 ppm || <0.01 ||
|| AR Reflection 532 nm || <0.01 || < 1000 ppm ||n/a ||n/a || ||
|| ROC || Flat (>5 km) || 57.5 m? ||115.5 96.3 +50/-0 (96**) || 142 117.1+50/-20 (116.3**) || inf ||
|| Wedge angle || 1 deg (+/- 0.2 deg) || 1 deg ||1 deg ||1 deg ||1 deg ||


[[BR]][[BR]]*''T_ITMnom = 0.014 +/- 0.002. 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.''** Based on ETM and ITM ROC, assuming inf. thin optics.
----
 . Draft zip file of specs in .doc format: attachment:40mCOC-080723.zip (need to change the ext to .doc) 
 . Also in [javascript:void(0);/*1254859239474*/ [PDF]] 

----
 . Specs of the folding mirrors for the recycling cavities    

|| Name || PR1 || PR2 || SR1 || 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 || 39.9 deg || 17.1 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 ||


----
 . [[Upgrade 08/Optics/RCParams|Considerations on the parameters of PRC/SRC]]    

'''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)
}}}