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| === FPMI no loss case with LCGT parameters === | === FPMI no loss case for LCGT parameters === |
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| === PRFPMI no loss case with LCGT parameters === | === PRFPMI no loss case for LCGT parameters === |
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| === BRSE no loss case with LCGT parameters === | === BRSE no loss case for LCGT parameters === |
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=== BRSE no loss case with radiation pressure noise for LCGT parameters === {{attachment:BRSE_noloss_rad.png}} [[attachment:20090709_simall_BRSE_noloss_rad.zip]] Optickle uses vacuum injection from dark port on this model due to introduce radiation pressure noise, so Optickle result with RF detection is worse than other calculation like Thomas's DC readout. Calculation above this model assumed ideal flat shotnoise, so all the results were matched well. |
Simulation Tools
Name |
Platform |
Domain |
Capabilities |
Author |
Web |
Optickle |
Matlab |
Frequency Domain |
Radiation Pressure, 01 mode |
Matt Evans |
|
Finesse |
C? |
Frequency Domain |
Higher order modes |
Andreas Freise |
|
e2e |
C++ |
Time Domain |
|
Hiro Yamamoto |
Comparison of simulation tools for LCGT
I am comparing several simulation tools with theoretical line using LCGT 2007 parameters. I used here FINESSE, Thomas, Oprickle. Except for FINESSE, all results matched pretty well within 0.1%-1% accuracy. FINESSE seems to have a bug of a factor by sqrt(2), but it can be compensated later if you know this information.
- Theoretical: just analytical way shown in LCGT document on page xx.
- FINESSE: Developped by Andreas Freise. C based. 'ps2S' and 'scale meter' commands are used for the unit in m/rHz and 'fig' command are used to produce excitations in frequency domain. Compensation factor *sqrt(2) was needed to match other results. This could be a bug.
- Thomas: Developped by Thomas Cobit. Visual C++ besed, running only Windows machine. This is the first simulation tool which can calculate quantum effect including raddiation pressure effect. For shotnoise calculation, just very hevy masses are used to compare shotnoise above.
- Optickle: Developped by Matt Evans. Matlab based, very flexible simulation tool. You can use a full set of Matlab functions. This tool also can calculate full quantum effect.
FPMI no loss case for LCGT parameters
20090709_simall_FPMI_noloss.zip
PRFPMI no loss case for LCGT parameters
20090709_simall_PRFPMI_noloss.zip
BRSE no loss case for LCGT parameters
20090709_simall_BRSE_noloss.zip
BRSE no loss case with radiation pressure noise for LCGT parameters
20090709_simall_BRSE_noloss_rad.zip
Optickle uses vacuum injection from dark port on this model due to introduce radiation pressure noise, so Optickle result with RF detection is worse than other calculation like Thomas's DC readout. Calculation above this model assumed ideal flat shotnoise, so all the results were matched well.