40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
 40m Log Not logged in
 Mon Jun 11 11:45:13 2018, keerthana , Update, elog, Comparison of the analytical and finesse values of TMS and FSR. Mon Jun 11 18:10:51 2018, Koji , Update, elog, Comparison of the analytical and finesse values of TMS and FSR. Mon Jun 11 19:16:49 2018, keerthana, Update, elog, Comparison of the analytical and finesse values of TMS and FSR. Mon Jun 11 22:05:03 2018, Koji, Update, elog, Comparison of the analytical and finesse values of TMS and FSR. Mon Jun 11 22:18:18 2018, keerthana, Update, elog, Comparison of the analytical and finesse values of TMS and FSR.
Message ID: 13938     Entry time: Mon Jun 11 11:45:13 2018     Reply to this: 13941
 Author: keerthana Type: Update Category: elog Subject: Comparison of the analytical and finesse values of TMS and FSR.
 Quantity Analytical Value Finesse Value Percentage Error Free Spectral range (FSR) 3.893408 MHz 3.8863685 MHz 0.180 % Transverse Mode Spacing (TMS) 1.195503 MHz 1.1762885 MHz 1.607 %

The values obtained from both analytical and finesse solution is given in the above table along with the corresponding percentage errors.finesse1.pdf

The parameters used for this calculation are listed below.

 Parameter Value length of the cavity (L) 38.5 m Wavelength of the laser beam ($\lambda$) 1064 nm Radius of curvature of ITM (R1) $\infty$ Radius of curvature of ETM (R2) 58 m

The cavity scan data obtained from Finesse is also attached here.

 Attachment 1: finesse1.pdf  15 kB  Uploaded Mon Jun 11 13:35:05 2018
ELOG V3.1.3-