Differences between revisions 1 and 5 (spanning 4 versions)
Revision 1 as of 2010-11-08 01:36:18
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Revision 5 as of 2010-11-08 02:00:43
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||<align="center":width="20%">'''Parameter'''||<align="center":width="15%">'''iLCGT'''||<align="center":width="15%">'''--''' ||<align="center":width="5%"> units|| ||<align="center":width="20%">'''Parameter'''||<align="center":width="15%">'''iLCGT'''||<align="center":width="15%">'''mLCGT''' ||<align="center":width="5%"> units||
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||Wave length || 1064 || ||nm||
||Initial Laser Power || 10-20 || ||W||
||Injecting Laser Power into IFO || 10-20 || ||W||
||Modulation depth || -- || || ||
||RF freq 1 || TBD (PM) || ||Hz||
||Wave length || 1064 || 1064 ||nm||
||Initial Laser Power || 10-20 || TBD ||W||
||Injecting Laser Power into IFO || 10-20 || TBD ||W||
||Modulation depth || -- || -- || ||
||RF freq 1 || TBD (PM) || 11.25 (PM) ||MHz||
||RF freq 2 || NA || 45 (AM) ||MHz||
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||Arm cavity Finesse || 1546 || || ||
||Arm cavity power gain || 960 || || ||
||Arm power (single arm)|| -- || ||W||
||Arm cavity Finesse || 1546 || 1546 || ||
||Arm cavity power gain || 960 || 960 || ||
||PR gain || No PR || --
|| ||
||Arm power (single arm) || -- || -- ||W||
||PRC power on BS || 10-20 || 100-200 ||W||
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||Arm cavity length || 3000 || ||m||
||Asymmetry length || 3.33103 || ||m||
||BS-FM length || 25 || ||m||
||Arm cavity length || 3000 || 3000 ||m||
||PR cavity length || No PR || 73.2826
||m||
||Asymmetry length || 3.33103 || 3.33103 ||m||
||BS-FM length || 25 || 25 ||m||
||SR cavity length || No SR || 73.2826 ||m||
||SRC detuning phase|| No SR || TBD ||degree||
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||EM Reflectivity || 0.999945 ||        || ||
||FM Reflectivity || 0.996000 ||        || ||
||BS Reflectivity || 0.5    || || ||
||HR Coating Loss of EM, FM || 45e-6 || || ||
||BS Loss || -- || || ||
||AR Transmittance || -- || || ||
||AR Coating Loss || -- || || ||
||EM Reflectivity || 0.999945 || 0.999945 || ||
||FM Reflectivity || 0.996000 || 0.996000 || ||
||PRM Reflectivity || No PR || 0.77 || ||
||SRM Reflectivity || No SR || 0.85
|| ||
||BS Reflectivity || 0.5 || 0.5 || ||
||HR Coating Loss of EM and FM || 45e-6 || 45e-6 || ||
||BS Loss || -- || -- || ||
||AR Transmittance || -- || -- || ||
||AR Coating Loss || -- || -- || ||
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||Arm cavity cut-off frequency || || ||Hz||
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||Other losses in PRC || || || ||
||Other losses in SRC || || || ||
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||EM mass || 10.8 || ||kg||
||FM mass || 30? || ||kg||
||BS mass || -- || ||kg||
||EM mass || 10.8 || TBD ||kg||
||FM mass || 30? || TBD ||kg||
||PRM mass || No PR || 10.8? ||kg||
||SRM mass || No SR || 10.8?
||kg||
||BS mass || 29.9 || 29.9 ||kg||
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||EM ROC || -- || ||m||
||FM ROC || -- || ||m||
||FM AR ROC || Flat || ||m||
||BS ROC || Infinity || ||m||
||EM ROC || 7098.08 || TBD ||m||
||FM ROC || TBD || TBD ||m||
||FM AR ROC || Inf || Inf ||m||
||PRM ROC || No PR || -- ||m||
||SRM ROC || No SR || -- ||m||
||BS ROC || Inf || Inf ||m||
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||EM radius/thickness || 25 / 15 || ||cm||
||FM radius/thickness || -- || ||cm||
||PRM radius/thickness || No PR || ||cm||
||SRM radius/thickness || No SR || ||cm||
||BS radius/thickness || 38 / 12 || ||cm||
||EM radius/thickness || 25 / 10 || -- ||cm||
||FM radius/thickness || TBD || -- ||cm||
||PRM radius/thickness || No PR || -- ||cm||
||SRM radius/thickness || No SR || -- ||cm||
||BS radius/thickness || 38 / 12 || 38 / 12 ||cm||
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||MC1 length || -- || ||m||
||MC2 length || 13.324109 || ||m||
||MC1 Finesse || -- || || ||
||MC2 Finesse || -- || || ||
||MC1 length || -- || -- ||m||
||MC2 length || 26.648218 || 26.648218 ||m||
||MC1 Finesse || -- || -- || ||
||MC2 Finesse || -- || -- || ||
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||<bgcolor="#FFFF00":colspan="4"> '''Output Mode Cleaner''' ||
||OMC length || No OMC || TBD ||m||
||OMC Finesse || No OMC || TBD || ||
||OMC input/output mirror reflectivity || No OMC || TBD || ||
||OMC end mirror reflectivity || No OMC || TBD || ||
||OMC MC FSR || No OMC || TBD ||MHz||
||DC readout phase || NA || 90 || degree ||
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||Quantum efficiency || 0.9 || || ||
||CARM control band width || 30k? || ||Hz||
||DARM control band width || 200? || ||Hz||
||MICH control band width || 50? || ||Hz||
||Quantum efficiency || 0.9 || 0.9 || ||
||CARM control band width || 30k? || -- ||Hz||
||DARM control band width || 200? || -- ||Hz||
||PRC control band width || No PR || --
||Hz||
||MICH control band width || 50? || -- ||Hz||
||SRC control band width || No SR || -- ||Hz||
||Feed-Forward gain || TBD || -- || ||

..Up

Interferometer Parameters

Parameter

iLCGT

mLCGT

units

Laser source

Wave length

1064

1064

nm

Initial Laser Power

10-20

TBD

W

Injecting Laser Power into IFO

10-20

TBD

W

Modulation depth

--

--

RF freq 1

TBD (PM)

11.25 (PM)

MHz

RF freq 2

NA

45 (AM)

MHz

Primary parameters of interferometer

Arm cavity Finesse

1546

1546

Arm cavity power gain

960

960

PR gain

No PR

--

Arm power (single arm)

--

--

W

PRC power on BS

10-20

100-200

W

Cavity Length

Arm cavity length

3000

3000

m

PR cavity length

No PR

73.2826

m

Asymmetry length

3.33103

3.33103

m

BS-FM length

25

25

m

SR cavity length

No SR

73.2826

m

SRC detuning phase

No SR

TBD

degree

Mirror optical properties

EM Reflectivity

0.999945

0.999945

FM Reflectivity

0.996000

0.996000

PRM Reflectivity

No PR

0.77

SRM Reflectivity

No SR

0.85

BS Reflectivity

0.5

0.5

HR Coating Loss of EM and FM

45e-6

45e-6

BS Loss

--

--

AR Transmittance

--

--

AR Coating Loss

--

--

MICH contrast

Other losses in PRC

Other losses in SRC

Mirror geometries

EM mass

10.8

TBD

kg

FM mass

30?

TBD

kg

PRM mass

No PR

10.8?

kg

SRM mass

No SR

10.8?

kg

BS mass

29.9

29.9

kg

EM ROC

7098.08

TBD

m

FM ROC

TBD

TBD

m

FM AR ROC

Inf

Inf

m

PRM ROC

No PR

--

m

SRM ROC

No SR

--

m

BS ROC

Inf

Inf

m

EM radius/thickness

25 / 10

--

cm

FM radius/thickness

TBD

--

cm

PRM radius/thickness

No PR

--

cm

SRM radius/thickness

No SR

--

cm

BS radius/thickness

38 / 12

38 / 12

cm

Mode Cleaner

MC1 length

--

--

m

MC2 length

26.648218

26.648218

m

MC1 Finesse

--

--

MC2 Finesse

--

--

Output Mode Cleaner

OMC length

No OMC

TBD

m

OMC Finesse

No OMC

TBD

OMC input/output mirror reflectivity

No OMC

TBD

OMC end mirror reflectivity

No OMC

TBD

OMC MC FSR

No OMC

TBD

MHz

DC readout phase

NA

90

degree

Control Bandwidth

Quantum efficiency

0.9

0.9

 

CARM control band width

30k?

--

Hz

DARM control band width

200?

--

Hz

PRC control band width

No PR

--

Hz

MICH control band width

50?

--

Hz

SRC control band width

No SR

--

Hz

Feed-Forward gain

TBD

--


LCGT/iLCGT/IFOParameters (last edited 2010-11-28 19:31:57 by KentaroSomiya)