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Commit ec88c241 authored by Jameson Graef Rollins's avatar Jameson Graef Rollins
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tweak comment formatting in aLIGO definition 

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......@@ -26,24 +26,22 @@
# 12. Gretarsson & Harry, Gretarsson thesis
# 13. Fejer
# 14. Braginsky
#
#
Constants:
# Temperature of the Vacuum
Temp: 290 # K
Temp: 290 # K
Infrastructure:
Length: 3995 # m
Length: 3995 # m
ResidualGas:
pressure: 4.0e-7 # Pa
mass: 3.35e-27 # kg; Mass of H_2 (ref. 10)
polarizability: 7.8e-31 # m^3
pressure: 4.0e-7 # Pa
mass: 3.35e-27 # kg; Mass of H_2 (ref. 10)
polarizability: 7.8e-31 # m^3
TCS:
s_cc: 7.024 # Watt^-2
s_cs: 7.321 # Watt^-2
s_ss: 7.631 # Watt^-2
s_cc: 7.024 # Watt^-2
s_cs: 7.321 # Watt^-2
s_ss: 7.631 # Watt^-2
# The hardest part to model is how efficient the TCS system is in
# compensating this loss. Thus as a simple Ansatz we define the
# TCS efficiency TCSeff as the reduction in effective power that produces
......@@ -58,14 +56,14 @@ TCS:
SRCloss: 0.00
Seismic:
Site: 'LHO' # LHO or LLO (only used for Newtonian noise)
KneeFrequency: 10 # Hz; freq where 'flat' noise rolls off
LowFrequencyLevel: 1e-9 # m/rtHz; seismic noise level below f_knee
Gamma: .8 # abruptness of change at f_knee
Rho: 1.8e3 # kg/m^3; density of the ground nearby
Beta: 0.5 # quiet times beta: 0.35-0.60
Site: 'LHO' # LHO or LLO (only used for Newtonian noise)
KneeFrequency: 10 # Hz; freq where 'flat' noise rolls off
LowFrequencyLevel: 1e-9 # m/rtHz; seismic noise level below f_knee
Gamma: .8 # abruptness of change at f_knee
Rho: 1.8e3 # kg/m^3; density of the ground nearby
Beta: 0.5 # quiet times beta: 0.35-0.60
# noisy times beta: 0.15-1.4
Omicron: 1 # Feedforward cancellation factor
Omicron: 1 # Feedforward cancellation factor
Suspension:
# 0 for cylindrical suspension
......@@ -73,20 +71,20 @@ Suspension:
Type: 2
# 0: round, 1: ribbons
FiberType: 0
BreakStress: 750e6 # Pa; ref. K. Strain
BreakStress: 750e6 # Pa; ref. K. Strain
Temp: 290
VHCoupling:
theta: 1e-3 # vertical-horizontal x-coupling
theta: 1e-3 # vertical-horizontal x-coupling
Silica:
Rho : 2200 # Kg/m^3;
C : 772 # J/Kg/K;
K : 1.38 # W/m/kg;
Alpha : 3.9e-7 # 1/K;
dlnEdT: 1.52e-4 # (1/K), dlnE/dT
Phi : 4.1e-10 # from G Harry e-mail to NAR 27April06 dimensionless units
Y : 72e9 # Pa; Youngs Modulus
Dissdepth: 1.5e-2 # from G Harry e-mail to NAR 27April06
Rho : 2200 # Kg/m^3;
C : 772 # J/Kg/K;
K : 1.38 # W/m/kg;
Alpha : 3.9e-7 # 1/K;
dlnEdT: 1.52e-4 # (1/K), dlnE/dT
Phi : 4.1e-10 # from G Harry e-mail to NAR 27April06 dimensionless units
Y : 72e9 # Pa; Youngs Modulus
Dissdepth: 1.5e-2 # from G Harry e-mail to NAR 27April06
C70Steel:
Rho: 7800
......@@ -95,7 +93,7 @@ Suspension:
Alpha: 12e-6
dlnEdT: -2.5e-4
Phi: 2e-4
Y: 212e9 # measured by MB for one set of wires
Y: 212e9 # measured by MB for one set of wires
MaragingSteel:
Rho: 7800
......@@ -127,12 +125,12 @@ Suspension:
# in suspQuad, so including it here would double count)
Stage:
# Stage1
- Mass: 39.6 # kg; current numbers May 2006 NAR
Length: 0.59 # m
Dilution: .nan #
K: .nan # N/m; vertical spring constant
WireRadius: .nan # m
Blade: .nan # blade thickness
- Mass: 39.6 # kg; current numbers May 2006 NAR
Length: 0.59 # m
Dilution: .nan #
K: .nan # N/m; vertical spring constant
WireRadius: .nan # m
Blade: .nan # blade thickness
NWires: 4
# Stage2
......@@ -199,45 +197,45 @@ Materials:
## Substrate Material parameters--------------------------------------------
Substrate:
c2 : 7.6e-12 # Coeff of freq depend. term for bulk mechanical loss, 7.15e-12 for Sup2
MechanicalLossExponent: 0.77 # Exponent for freq dependence of silica loss, 0.822 for Sup2
Alphas: 5.2e-12 # Surface loss limit (ref. 12)
MirrorY: 7.27e10 # N/m^2; Youngs modulus (ref. 4)
MirrorSigma: 0.167 # Kg/m^3; Poisson ratio (ref. 4)
MassDensity: 2.2e3 # Kg/m^3; (ref. 4)
MassAlpha: 3.9e-7 # 1/K; thermal expansion coeff. (ref. 4)
MassCM: 739 # J/Kg/K; specific heat (ref. 4)
MassKappa: 1.38 # J/m/s/K; thermal conductivity (ref. 4)
RefractiveIndex: 1.45 # mevans 25 Apr 2008
c2 : 7.6e-12 # Coeff of freq depend. term for bulk mechanical loss, 7.15e-12 for Sup2
MechanicalLossExponent: 0.77 # Exponent for freq dependence of silica loss, 0.822 for Sup2
Alphas: 5.2e-12 # Surface loss limit (ref. 12)
MirrorY: 7.27e10 # N/m^2; Youngs modulus (ref. 4)
MirrorSigma: 0.167 # Kg/m^3; Poisson ratio (ref. 4)
MassDensity: 2.2e3 # Kg/m^3; (ref. 4)
MassAlpha: 3.9e-7 # 1/K; thermal expansion coeff. (ref. 4)
MassCM: 739 # J/Kg/K; specific heat (ref. 4)
MassKappa: 1.38 # J/m/s/K; thermal conductivity (ref. 4)
RefractiveIndex: 1.45 # mevans 25 Apr 2008
## Laser-------------------------------------------------------------------
Laser:
Wavelength: 1.064e-6 # m
Power: 125 # W
Wavelength: 1.064e-6 # m
Power: 125 # W
## Optics------------------------------------------------------------------
Optics:
Type: 'SignalRecycled'
PhotoDetectorEfficiency: 0.95 # photo-detector quantum efficiency
Loss: 37.5e-6 # average per mirror power loss
BSLoss: 0.5e-3 # power loss near beamsplitter
coupling: 1.0 # mismatch btwn arms & SRC modes; used to
PhotoDetectorEfficiency: 0.95 # photo-detector quantum efficiency
Loss: 37.5e-6 # average per mirror power loss
BSLoss: 0.5e-3 # power loss near beamsplitter
coupling: 1.0 # mismatch btwn arms & SRC modes; used to
#SubstrateAbsorption: 0.5e-4 # 1/m; bulk absorption coef (ref. 2)
SubstrateAbsorption: 0.3e-4 # 1/m; 0.3 ppm/cm for Hereaus
pcrit: 10 # W; tolerable heating power (factor 1 ATC)
#SubstrateAbsorption: 0.5e-4 # 1/m; bulk absorption coef (ref. 2)
SubstrateAbsorption: 0.3e-4 # 1/m; 0.3 ppm/cm for Hereaus
pcrit: 10 # W; tolerable heating power (factor 1 ATC)
Quadrature:
dc: 1.5707963 # pi/2 # demod/detection/homodyne phase
dc: 1.5707963 # pi/2 # demod/detection/homodyne phase
ITM:
BeamRadius: 0.055 # m, 1/e^2 power radius
BeamRadius: 0.055 # m, 1/e^2 power radius
Transmittance: 0.014
CoatingThicknessLown: 0.308
CoatingThicknessCap: 0.5
CoatingAbsorption: 0.5e-6
SubstrateAbsorption: 0.3e-4 # 1/m, 0.3 ppm/cm for Hereaus
SubstrateAbsorption: 0.3e-4 # 1/m, 0.3 ppm/cm for Hereaus
ETM:
BeamRadius: 0.062 # m, 1/e^2 power radius
BeamRadius: 0.062 # m, 1/e^2 power radius
Transmittance: 5e-6
CoatingThicknessLown: 0.27
CoatingThicknessCap: 0.5
......@@ -245,10 +243,10 @@ Optics:
Transmittance: 0.03
SRM:
Transmittance: 0.20
CavityLength: 55 # m, ITM to SRM distance
Tunephase: 0.0 # SEC tuning
CavityLength: 55 # m, ITM to SRM distance
Tunephase: 0.0 # SEC tuning
Curvature: # ROC
Curvature: # ROC
ITM: 1970
ETM: 2192
......@@ -261,18 +259,18 @@ Optics:
# OptimalOptimal = optimal squeeze angle, assuming optimal readout phase
Squeezer:
Type: 'None'
AmplitudedB: 10 # SQZ amplitude [dB]
InjectionLoss: 0.05 # power loss to sqz
SQZAngle: 0 # SQZ phase [radians]
AmplitudedB: 10 # SQZ amplitude [dB]
InjectionLoss: 0.05 # power loss to sqz
SQZAngle: 0 # SQZ phase [radians]
# Parameters for frequency dependent squeezing
FilterCavity:
fdetune: -14.5 # detuning [Hz]
L: 100 # cavity length
Ti: 0.12e-3 # input mirror trasmission [Power]
Te: 0 # end mirror trasmission
Lrt: 100e-6 # round-trip loss in the cavity
Rot: 0 # phase rotation after cavity
fdetune: -14.5 # detuning [Hz]
L: 100 # cavity length
Ti: 0.12e-3 # input mirror trasmission [Power]
Te: 0 # end mirror trasmission
Lrt: 100e-6 # round-trip loss in the cavity
Rot: 0 # phase rotation after cavity
## Variational Output Parameters--------------------------------------------
# Define the output filter cavity chain
......@@ -282,9 +280,9 @@ Squeezer:
OutputFilter:
Type: 'None'
FilterCavity:
fdetune: -30 # detuning [Hz]
L: 4000 # cavity length
Ti: 10e-3 # input mirror trasmission [Power]
Te: 0 # end mirror trasmission
Lrt: 100e-6 # round-trip loss in the cavity
Rot: 0 # phase rotation after cavity
fdetune: -30 # detuning [Hz]
L: 4000 # cavity length
Ti: 10e-3 # input mirror trasmission [Power]
Te: 0 # end mirror trasmission
Lrt: 100e-6 # round-trip loss in the cavity
Rot: 0 # phase rotation after cavity
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