diff options
Diffstat (limited to 'sample_notebooks/Mohdarif/Chapter2.ipynb')
| -rwxr-xr-x | sample_notebooks/Mohdarif/Chapter2.ipynb | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/sample_notebooks/Mohdarif/Chapter2.ipynb b/sample_notebooks/Mohdarif/Chapter2.ipynb new file mode 100755 index 00000000..588b4703 --- /dev/null +++ b/sample_notebooks/Mohdarif/Chapter2.ipynb @@ -0,0 +1,239 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:682987e4618d85f3223ce09c9f676959c97dc81b85e6ff92270d30168f8d3c6a" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 2 - Optical Fibers" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex 2.4.1 - p:2-10" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "n1=1.46 #refractive index\n", + "d=0.01 #difference\n", + "na=n1*(2*d)**(1.0/2) #numerical aperture\n", + "x=1-d #\n", + "oc=math.asin(x) #in radian\n", + "oc*=180/math.pi # in degree\n", + "print \"Numerical Aperture is \",round(na,2)\n", + "print \"Critical angle at core cladding interface is \",round(oc,1),\" degree.\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Numerical Aperture is 0.21\n", + "Critical angle at core cladding interface is 81.9 degree.\n" + ] + } + ], + "prompt_number": 16 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex2.5.1 - p:2-11" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "n2=1.45 #core refrative index\n", + "n1=1.49 #cladding refrative index\n", + "oc=math.asin(n2/n1) #in radian\n", + "oc*=180/math.pi # in degree\n", + "na=(n1**2-n2**2)**(1.0/2) #numerical aperture\n", + "pc=math.asin(na) # in radian\n", + "pc*=180/math.pi # in degree\n", + "print oc,\"Critical angle is \",round(oc,2),\" degree.\"\n", + "print \"Numerical aperture is \",round(na,3)\n", + "print \"Acceptance angle is \",round(pc,2),\" degree.\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "76.693896868 Critical angle is 76.69 degree.\n", + "Numerical aperture is 0.343\n", + "Acceptance angle is 20.06 degree.\n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex2.5.2 - p:2-11" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "delta = 1.2/100 # Relative refractive difference index\n", + "n1=1.45 # Core refractive index \n", + "NA= n1*(2*delta)**(1.0/2) #computing numerical aperture\n", + "Acceptance_angle = math.asin(NA) #computing acceptance angle\n", + "si = math.pi*NA**2 #computing solid acceptance angle\n", + "print \"Numerical aperture is %.3f.\\nAcceptance angle is %.2f degree.\\nSolid acceptance angle is %.3f radians.\"%(NA,Acceptance_angle,si)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Numerical aperture is 0.225.\n", + "Acceptance angle is 0.23 degree.\n", + "Solid acceptance angle is 0.159 radians.\n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex2.5.4 - p:2-12" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "diameter = 1.0 #Diameter in centimeter\n", + "Focal_length = 10.0 #Focal length in centimeter\n", + "radius=diameter/2.0 #computing radius\n", + "Acceptance_angle = math.atan(radius/Focal_length) #computing acceptance angle in radian\n", + "Acceptance_angle*=180/math.pi # in degree\n", + "Conical_full_angle = 2*Acceptance_angle #computing conical angle in degree\n", + "Solid_acceptance_angle = math.pi*Acceptance_angle**2 #computing solid acceptance angle in degree\n", + "NA = (Solid_acceptance_angle/math.pi)**(1.0/2) #computing Numerical aperture\n", + "print \"Numerical aperture is %.2f.\\nConical full angle is %.2f degree.\" %(NA,Conical_full_angle)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Numerical aperture is 2.86.\n", + "Conical full angle is 5.72 degree.\n" + ] + } + ], + "prompt_number": 23 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex2.8.1 - p:2-21" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "core_diameter=78*10**-6 #core diameter\n", + "delta=1.4/100 #relative index difference\n", + "lamda=0.8*10**-6 #operating wavelength\n", + "n1=1.47 #core refractive index\n", + "a=core_diameter/2 #computing core radius\n", + "v= 2*3.14*a*n1*(2*delta)**(1.0/2)/lamda #computing normalized frequency\n", + "M=(v)**2/2 #computing guided modes\n", + "print \"Normalized Frequency is %.3f.\\nTotal number of guided modes are %.1f\" %(v,M) " + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Normalized Frequency is 75.306.\n", + "Total number of guided modes are 2835.5\n" + ] + } + ], + "prompt_number": 24 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex2.8.2 - p:2-23" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "n1=1.47 #refractive index of core\n", + "a=4.3 #radius of core in um\n", + "delta=0.2/100 #relative index difference\n", + "lamda= 2*math.pi*a*n1*(2*delta)**(1.0/2)/2.405 #computing wavelength in um\n", + "lamda=lamda*10**3 # nm\n", + "\n", + "print \"Wavelength of fiber is %0.2f nm.\" %lamda" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Wavelength of fiber is 1044.43 nm.\n" + ] + } + ], + "prompt_number": 30 + } + ], + "metadata": {} + } + ] +}
\ No newline at end of file |