linarphy/finesse-virgo-model
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4 commits
c46ed61f96 ... 0531a5bdec

Author SHA1 Message Date
linarphy
0531a5bdec
Add suspensions 2025-03-27 12:37:33 +01:00
linarphy
175d2c8747
Correct model 2025-03-20 09:06:44 +01:00
linarphy
b8102b71b6
Add the same phi to AR surface 2025-03-13 14:38:29 +01:00
linarphy
2cb30dfc19
Add AR coated side of each mirror 2025-03-13 09:25:34 +01:00
1 changed files with 70 additions and 8 deletions

78
virgo_simple.kat
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@ -30,12 +30,14 @@ variable length_PRCL 11.952 units='m'
variable length_SRCL 11.952 units='m'
# Laser
laser laser P=25 f=frequency
laser laser P=25
# Power Recycling
mirror PR_AR T=9.9984e-1 L=1.6e-4 Rc=-3.62 phi=PR.phi
mirror PR T=0.04835 L=37.5e-6 Rc=-1430
space inside_PR PR_AR.p2 PR.p1 L=0.1003 nr=silica
space space_laser_PR laser.p1 PR.p1 L=11.67
space space_laser_PR laser.p1 PR_AR.p1 L=11.67
# Beamsplitter
@ -45,25 +47,38 @@ space space_PR_BS PR.p2 BS.p1 L=5.925
# North arm
mirror NI_AR T=9.9968e-1 L=0.0 Rc=-1420 phi=NI.phi
mirror NI T=0.01377 L=37.5e-6 Rc=-1420
space inside_NI NI_AR.p2 NI.p1 L=0.2 nr=silica
mirror NE T=4.4e-6 L=37.5e-6 Rc=1683
mirror NE_AR R=100e-6 L=1.33e-4 phi=NE.phi
space inside_NE NE.p2 NE_AR.p1 L=0.2 nr=silica
space space_NI_NE NI.p2 NE.p1 L=2999.8
space space_BS_NI BS.p3 NI.p1 L=length_PRCL-space_PR_BS.L+schnupp_asymetry/2
space space_BS_NI BS.p3 NI_AR.p1 L=length_PRCL-space_PR_BS.L+schnupp_asymetry/2-inside_NI.L*inside_NI.nr
# West arm
mirror WI_AR T=9.99942e-1 L=0.0 Rc=-1424 phi=WI.phi
mirror WI T=0.01377 L=37.5e-6 Rc=-1420
space inside_WI WI_AR.p2 WI.p1 L=0.2 nr=silica
mirror WE T=4.3e-6 L=37.5e-6 Rc=1683
mirror WE_AR T=9.99845e-1 L=1.55e-4 phi=WE.phi
space inside_WE WE.p2 WE_AR.p1 L=0.2 nr=silica
space space_WI_WE WI.p2 WE.p1 L=2999.8
space space_BS_WI BS.p2 WI.p1 L=length_PRCL-space_PR_BS.L-schnupp_asymetry/2
# schnupp asymetry correction
space space_BS_WI BS.p2 WI_AR.p1 L=length_PRCL-space_PR_BS.L-schnupp_asymetry/2-inside_WI.L*inside_NI.nr
# SR
mirror SR T=0.40 L=37.5e-6 Rc=1430
mirror SR_AR T=9.99859e-1 L=1.41e-4 Rc=3.59 phi=SR.phi
space inside_SR SR.p2 SR_AR.p1 L=0.1004
space space_BS_SR BS.p4 SR.p1 L=length_SRCL-(space_BS_WI.L+space_BS_NI.L)/2
@ -92,17 +107,64 @@ degree_of_freedom WEST_ARM WE.dofs.z +1
degree_of_freedom PRCL PR.dofs.z +1
degree_of_freedom SRCL SR.dofs.z +1
degree_of_freedom MICH NI.dofs.z -1 WI.dofs.z +1 NE.dofs.z -1 WE.dofs.z +1
degree_of_freedom DARM NE.dofs.z -1 WE.dofs.z +1
degree_of_freedom MICH NI.dofs.z -0.5 WI.dofs.z +0.5 NE.dofs.z -0.5 WE.dofs.z +0.5
degree_of_freedom DARM NE.dofs.z -0.5 WE.dofs.z +0.5
degree_of_freedom CARM NE.dofs.z +1 WE.dofs.z +1
degree_of_freedom DARM_Fz NE.dofs.F_z -1 WE.dofs.F_z +1
degree_of_freedom DARM_Fz NE.dofs.F_z -0.5 WE.dofs.F_z +0.5
# cavities
cavity north_arm NI.p2.o priority=3
cavity west_arm WI.p2.o priority=3
cavity PRCL_north PR.p2.o via=WE.p1.i priority=2
cavity PRCL_west PR.p2.o via=NE.p1.i priority=2
cavity SRCL_north SR.p1.o via=WE.p1.i priority=1
cavity SRCL_west SR.p1.o via=WE.p1.i priority=1
readout_rf B1 SR.p2.o output_detectors=True
readout_rf B1 SDB1.p2.o output_detectors=True f=0
# benches
mirror SNEB R=1e-6 L=0.0
mirror SWEB R=1e-6 L=0.0
mirror SDB1 R=1e-6 L=0.0 phi=45
space space_NE_AR_SNEB NE_AR.p2 SNEB.p1 L=7
space space_WE_AR_SWEB WE_AR.p2 SWEB.p1 L=7
space space_SR_SDB1 SR_AR.p2 SDB1.p1 L=0
power_detector_dc SNEB_DC SNEB.p1.i
power_detector_dc SWEB_DC SWEB.p1.i
power_detector_dc SDB1_DC SDB1.p1.i
degree_of_freedom SNEB_z SNEB.dofs.z -1
degree_of_freedom SWEB_z SWEB.dofs.z -1
degree_of_freedom SDB1_z SDB1.dofs.z -1
# Suspensions
pendulum NI_suspension NI.mech mass=42 fz=0.76 Qz=40
pendulum NI_AR_suspension NI_AR.mech mass=NI_suspension.mass fz=NI_suspension.fz Qz=NI_suspension.Qz
pendulum NE_suspension NE.mech mass=42 fz=0.76 Qz=40
pendulum NE_AR_suspension NE_AR.mech mass=NE_suspension.mass fz=NE_suspension.fz Qz=NE_suspension.Qz
pendulum WI_suspension WI.mech mass=42 fz=0.76 Qz=40
pendulum WI_AR_suspension WI_AR.mech mass=WI_suspension.mass fz=WI_suspension.fz Qz=WI_suspension.Qz
pendulum WE_suspension WE.mech mass=42 fz=0.76 Qz=40
pendulum WE_AR_suspension WE_AR.mech mass=WE_suspension.mass fz=WE_suspension.fz Qz=WE_suspension.Qz
pendulum PR_suspension PR.mech mass=42 fz=0.76 Qz=40
pendulum PR_AR_suspension PR_AR.mech mass=PR_suspension.mass fz=PR_suspension.fz Qz=PR_suspension.Qz
pendulum SR_suspension SR.mech mass=42 fz=0.76 Qz=40
pendulum SR_AR_suspension SR_AR.mech mass=SR_suspension.mass fz=SR_suspension.fz Qz=SR_suspension.Qz
pendulum SNEB_suspension SNEB.mech mass=42 fz=0.76 Qz=40
pendulum SWEB_suspension SWEB.mech mass=42 fz=0.76 Qz=40
pendulum SDB1_suspension SDB1.mech mass=42 fz=0.76 Qz=40
free_mass BS_suspension BS.mech mass=34