Size: 5879
Comment:
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Size: 5876
Comment:
|
Deletions are marked like this. | Additions are marked like this. |
Line 9: | Line 9: |
Line 10: | Line 11: |
=== g1=-0.7857, g2=-0.6043, 16.875MHz, 45MHz === | === ITM=1.9km, ETM=1.9km, PRC=16.5deg, SRC=17.5deg, 16.875MHz, 45MHz === |
Line 17: | Line 18: |
||Lp1 ||14.7606 ||Lp2 ||11.0669m ||Lp3 ||15.7638m || | ||Lp1 ||14.7615 ||Lp2 ||11.0661m ||Lp3 ||15.7638m || |
Line 19: | Line 20: |
||Ls1 ||14.7606m ||Ls2 ||11.0669m ||Ls3 ||15.7638m || ||Folding angle ||0.6860[deg] ||||||||<style="text-align:center"> || |
||Ls1 ||14.7412m ||Ls2 ||11.1115m ||Ls3 ||15.7386m || ||Folding Angle ||||||||||<style="text-align:center"> || |
Line 26: | Line 27: |
||ITM ||1680.0m ||ETM ||1870.0m ||||<style="text-align:center"> || ||PRM ||303.96m ||PR2 ||-2.7628m ||PR3 ||24.574m || ||SRM ||303.96m ||SR2 ||-2.7764m ||SR3 ||24.584m || |
||ITM ||1900.0m ||ETM ||1900.0m ||||<style="text-align:center"> || ||PRM ||458.1285m ||PR2 ||-3.0764m ||PR3 ||24.9165m || ||SRM ||458.1285m ||SR2 ||-2.9872m ||SR3 ||24.9165m || |
Line 32: | Line 33: |
||ITM ||35.064mm ||ETM ||39.983mm ||||<style="text-align:center"> || ||PRM ||4.030mm ||PR2 ||4.030mm ||PR3 ||36.479mm || ||SRM ||4.031mm ||SR2 ||4.031mm ||SR3 ||36.327mm || |
||ITM ||35.3mm ||ETM ||35.3mm ||||<style="text-align:center"> || ||PRM ||4.457mm ||PR2 ||4.457mm ||PR3 ||36.639mm || ||SRM ||4.308mm ||SR2 ||4.328mm ||SR3 ||36.666mm || |
Line 41: | Line 42: |
||HR Radius of Curvature ||1.68(+/-0.008)km ||0.5% error || | ||HR Radius of Curvature ||1.90(+/-0.0095)km ||0.5% error || |
Line 43: | Line 44: |
||AR Wedge Angle ||0.2+/-0.002deg || || | ||AR Wedge Angle ||0.025+0/-0.01deg || || |
Line 47: | Line 48: |
||Transmission@532nm ||0.2(+/-0.1) ||Transmission of ITM must be larger than ETM@532nm || | ||Transmission@532nm ||0.06(+0/-0.005) ||Transmission of ITM must be larger than ETM@532nm || |
Line 57: | Line 58: |
||HR Radius of Curvature ||1.87(+/-0.009)km ||0.5% error || | ||HR Radius of Curvature ||1.9(+/-0.0095)km ||0.5% error || |
Line 63: | Line 64: |
||Transmission@532nm ||0.2(+/-0.01) ||Transmission of ETM must be smaller than ITM@532nm || | ||Transmission@532nm ||0.06(+0/-0.005) ||Transmission of ETM must be smaller than ITM@532nm || |
Line 73: | Line 74: |
||Diameter ||380mm +/- 0.25mm || || | ||Diameter ||370mm +/- 0.25mm || || |
Line 75: | Line 76: |
||HR Radius of Curvature ||Flat (>100km) ||As flat as possible || ||AR Radius of Curvature ||Flat (>100km) ||As flat as possible || ||AR Wedge Angle ||0.383+/-0.008deg || || ||Incident Angle ||45.15deg +/-0.05deg || || |
||HR Radius of Curvature ||Flat (>500km) ||As flat as possible || ||AR Radius of Curvature ||Flat (>500km) ||As flat as possible || ||AR Wedge Angle ||0.08+0/-0.01deg || || ||Incident Angle ||44.9684deg +/-0.05deg || || |
Line 90: | Line 91: |
||HR Radius of Curvature ||303.96m(+/-1.5)m ||0.5% error || | ||HR Radius of Curvature ||458.1285m(+/-20)m ||5% error || |
Line 101: | Line 102: |
||HR Radius of Curvature ||-2.763(+/-0.01)m ||0.5% error || | ||HR Radius of Curvature ||-3.0764(+/-0.01)m || || |
Line 115: | Line 116: |
||HR Radius of Curvature ||24.57(+/-0.1)m ||0.5% error || | ||HR Radius of Curvature ||24.9165(+/-0.01)m || || |
Line 129: | Line 130: |
||HR Radius of Curvature ||303.96m(+/-1.5)m ||0.5% error || | ||HR Radius of Curvature ||458.1285m(+/-20)m ||5% error || |
Line 140: | Line 141: |
||HR Radius of Curvature ||-2.776(+/-0.01)m ||0.5% error || | ||HR Radius of Curvature ||-2.9872(+/-0.01)m || || |
Line 154: | Line 155: |
||HR Radius of Curvature ||24.58(+/-0.1)m ||0.5% error || | ||HR Radius of Curvature ||24.9165(+/-0.01)m || || |
Line 163: | Line 164: |
Actual Optical Parameters of the Main Interferometer
Contents
Optical Parameters
Interferometer Diagram
Note: In this figure POP is taken at the transmission of PR3, because it is easier to draw. In reality, POP will be taken at the transmission of PR2.
ITM=1.9km, ETM=1.9km, PRC=16.5deg, SRC=17.5deg, 16.875MHz, 45MHz
This is the parameter set chosen by the MIF group.
Lengths & Frequencies
f1 |
16.880962MHz (3*f2/8) |
f2 |
45.015898MHz |
f3 |
56.269873MHz (10*f2/8) |
Larm |
3000.0m |
Lmc |
26.639m |
|
|
Lprc |
66.591m |
Lsrc |
66.591m |
Las |
3.3299m |
Lp1 |
14.7615 |
Lp2 |
11.0661m |
Lp3 |
15.7638m |
Lmi |
25m |
Lmx |
26.6649m |
Lmy |
23.3351m |
Ls1 |
14.7412m |
Ls2 |
11.1115m |
Ls3 |
15.7386m |
Folding Angle |
|
Folding angle is an incident angle of the beam to the folding mirrors. The angle between incoming and reflected beams is twice the folding angle.
Radius of Curvatures (Positive for concave)
ITM |
1900.0m |
ETM |
1900.0m |
|
|
PRM |
458.1285m |
PR2 |
-3.0764m |
PR3 |
24.9165m |
SRM |
458.1285m |
SR2 |
-2.9872m |
SR3 |
24.9165m |
Beam Spot Size (1/e^2 radius)
ITM |
35.3mm |
ETM |
35.3mm |
|
|
PRM |
4.457mm |
PR2 |
4.457mm |
PR3 |
36.639mm |
SRM |
4.308mm |
SR2 |
4.328mm |
SR3 |
36.666mm |
Mirror Specs
Test Masses
ITM
HR Radius of Curvature |
1.90(+/-0.0095)km |
0.5% error |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
0.025+0/-0.01deg |
|
Transmission@1064nm |
0.004 +0.001/-0.0 |
|
Transmission asymmetry@1064nm |
2*|(T1-T2)/(T1+T2)| < 0.01 |
T1 and T2 are the transmission of two ITMs |
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
0.06(+0/-0.005) |
Transmission of ITM must be larger than ETM@532nm |
Transmission asymmetry@532nm |
No requirement |
|
HR Loss@532nm |
<1% |
|
AR Reflectivity@1064nm |
200(+100/-0)ppm |
|
AR Reflectivity@532nm |
<5% |
As small as possible |
ETM
HR Radius of Curvature |
1.9(+/-0.0095)km |
0.5% error |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
0.2+/-0.1deg |
|
Transmission@1064nm |
5ppm < T < 10ppm |
|
Transmission asymmetry@1064nm |
2*|(T1-T2)/(T1+T2)| < 0.01 |
Best Effort |
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
0.06(+0/-0.005) |
Transmission of ETM must be smaller than ITM@532nm |
Transmission asymmetry@532nm |
No requirement |
|
HR Loss@532nm |
<1% |
|
AR Reflectivity@1064nm |
<50ppm |
|
AR Reflectivity@532nm |
<5% |
As small as possible |
BS
Diameter |
370mm +/- 0.25mm |
|
Thickness |
80mm +/- 0.5mm |
|
HR Radius of Curvature |
Flat (>500km) |
As flat as possible |
AR Radius of Curvature |
Flat (>500km) |
As flat as possible |
AR Wedge Angle |
0.08+0/-0.01deg |
|
Incident Angle |
44.9684deg +/-0.05deg |
|
Transmission@1064nm |
50% +/-1% |
|
HR Loss@1064nm |
<100ppm |
|
Transmission@532nm |
>0.9 |
|
HR Loss@532nm |
<1% |
|
AR Reflectivity@1064nm |
<50ppm |
|
AR Reflectivity@532nm |
<5% |
As small as possible |
PRM
HR Radius of Curvature |
458.1285m(+/-20)m |
5% error |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
0.1(+0.001/-0.0) |
|
HR Loss@1064nm |
<45ppm |
|
AR Reflectivity@1064nm |
<50ppm |
|
PR2
HR Radius of Curvature |
-3.0764(+/-0.01)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
500ppm(+/-50ppm) |
|
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
> 0.5 |
As large as possible |
HR Loss@532nm |
<10% |
|
AR Reflectivity@1064nm |
<1000ppm |
As small as possible |
AR Reflectivity@532nm |
<5% |
As small as possible |
PR3
HR Radius of Curvature |
24.9165(+/-0.01)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
<50ppm |
As small as possible |
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
< 0.1 |
As small as possible |
HR Loss@532nm |
<10% |
|
AR Reflectivity@1064nm |
<1000ppm |
As small as possible |
AR Reflectivity@532nm |
<5% |
As small as possible |
SRM
HR Radius of Curvature |
458.1285m(+/-20)m |
5% error |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
0.1536(+/-0.001) |
|
HR Loss@1064nm |
<45ppm |
|
AR Reflectivity@1064nm |
<50ppm |
|
SR2
HR Radius of Curvature |
-2.9872(+/-0.01)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
500ppm(+/-50ppm) |
|
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
> 0.5 |
As large as possible |
HR Loss@532nm |
<10% |
|
AR Reflectivity@1064nm |
<1000ppm |
As small as possible |
AR Reflectivity@532nm |
<5% |
As small as possible |
SR3
HR Radius of Curvature |
24.9165(+/-0.01)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
TBD |
|
Transmission@1064nm |
<50ppm |
As small as possible |
HR Loss@1064nm |
<45ppm |
|
Transmission@532nm |
< 0.1 |
As small as possible |
HR Loss@532nm |
<10% |
|
AR Reflectivity@1064nm |
<1000ppm |
As small as possible |
AR Reflectivity@532nm |
<5% |
As small as possible |