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| author | hardythe1 | 2015-04-07 15:58:05 +0530 |
|---|---|---|
| committer | hardythe1 | 2015-04-07 15:58:05 +0530 |
| commit | c7fe425ef3c5e8804f2f5de3d8fffedf5e2f1131 (patch) | |
| tree | 725a7d43dc1687edf95bc36d39bebc3000f1de8f /Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb | |
| parent | 62aa228e2519ac7b7f1aef53001f2f2e988a6eb1 (diff) | |
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added books
Diffstat (limited to 'Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb')
| -rwxr-xr-x | Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb | 114 |
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diff --git a/Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb b/Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb new file mode 100755 index 00000000..932f4802 --- /dev/null +++ b/Modern_Physics_By_G.Aruldas/Chapter16_3.ipynb @@ -0,0 +1,114 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:8689775b6694dc6c6ea95bc809bbd7280d9553003ec1dbe78844db2dc6fa68f3"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "16: Fibre optics and holography"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 16.1, Page number 306"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "n2=1.4; #refractive index of cladding\n",
+ "n1=1.43; #refractive index of core\n",
+ "\n",
+ "#Calculation\n",
+ "costhetac=n2/n1; \n",
+ "thetac=math.acos(costhetac); #propagation angle(radian)\n",
+ "thetac=thetac*180/math.pi; #propagation angle(degrees)\n",
+ "NA=math.sqrt(n1**2-n2**2); #numerical aperture\n",
+ "thetaa=math.asin(NA); #angle(radian)\n",
+ "thetaa=thetaa*180/math.pi; #angle(degrees)\n",
+ "thetaa=2*thetaa; #acceptance angle(degrees)\n",
+ "\n",
+ "#Result\n",
+ "print \"propagation angle is\",round(thetac,1),\"degrees\"\n",
+ "print \"numerical aperture is\",round(NA,4)\n",
+ "print \"acceptance angle is\",round(thetaa,2),\"degrees\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "propagation angle is 11.8 degrees\n",
+ "numerical aperture is 0.2914\n",
+ "acceptance angle is 33.88 degrees\n"
+ ]
+ }
+ ],
+ "prompt_number": 8
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 16.3, Page number 311"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "z=30; #length of optical fibre(km)\n",
+ "alpha=0.8; #fibre loss(dB/km)\n",
+ "Pi=200; #input power(micro W)\n",
+ "\n",
+ "#Calculation\n",
+ "a=alpha*z/10;\n",
+ "b=10**a;\n",
+ "P0=Pi/b; #output power(micro W)\n",
+ "\n",
+ "#Result\n",
+ "print \"output power is\",round(P0,3),\"micro W\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "output power is 0.796 micro W\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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