Commit e3f26bf2 by Andreas Freise

### adding help text

parent 0e2c7295
 # ------------------------------------------------------ # Moving some utility function from Simtools # http://www.gwoptics.org/simtools/ # to PyKat. Work in progress, currently these # functions are not tested. # # Andreas 30.11.2014 # ------------------------------------------------------ """ ------------------------------------------------------ Utility functions to compute parameters of Fabry Perot cavities. Functions based on earlier version in Matlab( http://www.gwoptics.org/simtools/) Work in progress, currently these functions are untested! Andreas 30.11.2014 http://www.gwoptics.org/pykat/ ------------------------------------------------------ """ from __future__ import absolute_import from __future__ import division from __future__ import print_function ... ... @@ -15,6 +19,13 @@ from __future__ import unicode_literals import numpy as np def cavity_info(Lambda, L, Rc1, Rc2): """ Function computes several cavity paramaters Input: Lambda, L (length), Rc1, Rc2 (radii of curvature of cavity mirrors) Output: zr (Rayleigh range), w0 (waist size), z1 (distance waist<->mirror1) w1, w2 (spot size on both mirrors) See examples/optics/cavity_w_Rc.py for an example usage. """ g1 = 1-L/Rc1 g2 = 1-L/Rc2 G = g1*g2 ... ... @@ -31,6 +42,11 @@ def cavity_info(Lambda, L, Rc1, Rc2): return [zr, w0, z1, w1, w2] def cavity_w1w2_Rc1Rc2(Lambda, L, w1, w2): """ Function computes the radii of curvatures (Rc1, Rc2) for a linear cavity to produce the requested mirror spot sizes (w1,w2) for a given length (L) and wavelength (Lambda). """ C = (Lambda*L/np.pi)**2 g1 = -1.0 * np.sqrt(1-C/(w1*w2)**2)*(w2/w1) g2 = -1.0 * np.sqrt(1-C/(w1*w2)**2)*(w1/w2) ... ...
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