summaryrefslogtreecommitdiff
path: root/Fiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb
diff options
context:
space:
mode:
Diffstat (limited to 'Fiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb')
-rwxr-xr-xFiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb351
1 files changed, 351 insertions, 0 deletions
diff --git a/Fiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb b/Fiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb
new file mode 100755
index 00000000..f5cf6216
--- /dev/null
+++ b/Fiber_Optics_Communication_by_H._Kolimbiris/chapter3_1.ipynb
@@ -0,0 +1,351 @@
+{
+ "metadata": {
+ "celltoolbar": "Raw Cell Format",
+ "name": "",
+ "signature": "sha256:7de1eb2fd64e83d84c3bac45fdde67bd6a1d3072bc4eaad0b7177ada2889ebc7"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 3: Optical Sources"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.1,Page number 67"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "Pin=1; #microW\n",
+ "W=15; #in degree\n",
+ "NA=math.sin(W*math.pi/180);\n",
+ "NAA=0.26; #NA=0.2588190 which is rounded off\n",
+ "C_c=(NAA)**2;\n",
+ "print\"Coupling coefficient is \",C_c;\n",
+ "Pf=C_c*Pin;\n",
+ "print\"Power coupled into fiber \",Pf*1000,\"nW\\n\";\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Coupling coefficient is 0.0676\n",
+ "Power coupled into fiber 67.6 nW\n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.2,Page number 67"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "n=0.02; #in percentage\n",
+ "W=20; #in degree\n",
+ "Vf=1.5; #in Volts\n",
+ "If=20; #in mAmps\n",
+ "Pin=If*Vf;\n",
+ "print\"Power coupled into fiber ,Pin = \",Pin,\"mW\";\n",
+ "\n",
+ "Po=n*Pin;\n",
+ "print\"Output Power of the optical source is \",Po,\"mW\";\n",
+ "\n",
+ "#from nc=20 degree\n",
+ "C_c=(math.sin(W*math.pi/180))**2;\n",
+ "Pf=C_c*Po\n",
+ "print\"Optical power coupled into fibre is ,Pf = \",round(Pf*1000,4),\"microW\";\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Power coupled into fiber ,Pin = 30.0 mW\n",
+ "Output Power of the optical source is 0.6 mW\n",
+ "Optical power coupled into fibre is ,Pf = 70.1867 microW\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.3,Page number 68"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "tr=10; #in nsec\n",
+ "BW=0.35/tr/10**-9;\n",
+ "print\" Maximum operating bandwidth is \",BW/10**6,\"MHz\\n\"; #divided by 10**6 to convert answer in MHz\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " Maximum operating bandwidth is 35.0 MHz\n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.4,Page number 70"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "T=1; #Air\n",
+ "NA=0.3;\n",
+ "n0=1;\n",
+ "#x=y;\n",
+ "print\"for step index :A=infinite\";\n",
+ "#for infinite alpha\n",
+ "#nc=T*(NA/n0)^2*(x/y)^2*(A/(A+2))\n",
+ "nc=T*(NA/n0)**2*(1)**2*1; # A/(A+2)=1 for A=infinite\n",
+ "\n",
+ "print\"Coupling Coefficient,nc = \",nc*100,\"percent\";\n",
+ "\n",
+ "print\"for graded index :A=2\";\n",
+ "A=2;\n",
+ "#n_c=(T*(NA/n0)^2*(A+(1-(y/x)^2))/(A+2))\n",
+ "n_c=(T*(NA/n0)**2*(A+(1-(1)**2))/(A+2)) #x/y=1\n",
+ "print\"Coupling Coefficient,nc = \",n_c*100,\"percent\";\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "for step index :A=infinite\n",
+ "Coupling Coefficient,nc = 9.0 percent\n",
+ "for graded index :A=2\n",
+ "Coupling Coefficient,nc = 4.5 percent\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.5,Page number 71"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "T=1; #Air\n",
+ "NA=0.3;\n",
+ "n0=1;\n",
+ "A=2;\n",
+ "#y=0.75x;\n",
+ "print\"for step index :\";\n",
+ "#for infinite alpha\n",
+ "#nc=T*(NA/n0)^2*(x/y)^2*(A/(A+2))\n",
+ "nc=T*(NA/n0)**2*(1/0.75)**2*A/(A+2); #y/x=0.75\n",
+ "print\"Coupling Coefficient,nc = \",nc*100,\"percent\";\n",
+ "\n",
+ "print\"for graded index :A=2\";\n",
+ "A=2;\n",
+ "#n_c=(T*(NA/n0)^2*(A+(1-(y/x)^2))/(A+2))\n",
+ "n_c=(T*(NA/n0)**2*(A+(1-(0.75)**2))/(A+2)) #y/x=0.75\n",
+ "print\"Coupling Coefficient,nc = \",round(n_c*100,4),\"percent\";\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "for step index :\n",
+ "Coupling Coefficient,nc = 8.0 percent\n",
+ "for graded index :A=2\n",
+ "Coupling Coefficient,nc = 5.4844 percent\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.6,Page number 72"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "#calculate Tf\n",
+ "If=85; #in mAmps\n",
+ "Vf=2.5; #in Volts\n",
+ "Ta=25; #in deg C\n",
+ "\n",
+ "#calculate Tj\n",
+ "W=150; #in C/W for hermetric led\n",
+ "Pd=If*Vf;\n",
+ "Tj=Ta+W*Pd/1000;\n",
+ "print\"Value of Tj is \",Tj,\"deg C\";\n",
+ "\n",
+ "TF=8.01*10**12*math.e**-(8111/(Tj+273));\n",
+ "print\"Value of TF is \",round(TF,4),\"deg C\";\n",
+ "\n",
+ "#calculate RF\n",
+ "BF=6.5*10**-4; #from table\n",
+ "QF=0.5; #from table\n",
+ "EF=1; #from table\n",
+ "RF=BF*TF*EF*QF*1/10**6;\n",
+ "print\"Value of RF\",\"{0:.3e}\".format(RF);\n",
+ "print\"Value of MTBF is \",\"{0:.3e}\".format(1/RF),\"hours\";\n",
+ "\n",
+ "#Answer in book is misprint in last line"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Value of Tj is 56.875 deg C\n",
+ "Value of TF is 167.9406 deg C\n",
+ "Value of RF 5.458e-08\n",
+ "Value of MTBF is 1.832e+07 hours\n"
+ ]
+ }
+ ],
+ "prompt_number": 20
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 3.7,Page number 74"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#given\n",
+ "\n",
+ "#calculate Tf\n",
+ "If=120; #in mAmps\n",
+ "Vf=1.8; #in Volts\n",
+ "Ta=80; #in deg C\n",
+ "#calculate Tj\n",
+ "W=150; #in C/W for hermetric led\n",
+ "Pd=0.5*If*Vf;\n",
+ "Tj=75+W*Pd/1000;\n",
+ "print\"Value of Tj is \",Tj,\"degree cel\";\n",
+ "TF=8.01*10**12 *math.e**-(8111/(Tj+273));\n",
+ "print\"Value of TF is \",round(TF,4);\n",
+ "#calculate RF\n",
+ "BF=6.5*10**-4; #from table\n",
+ "QF=0.2; #from table\n",
+ "EF=0.75; #from table\n",
+ "RF=BF*TF*EF*QF*1/10**6;\n",
+ "print\"Value of RF is \",\"{0:.3e}\".format(RF);\n",
+ "print\"Value of MTBF is \",\"{0:.3e}\".format(1/RF),\"hours\";\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Value of Tj is 91.2 degree cel\n",
+ "Value of TF is 1704.4223\n",
+ "Value of RF is 1.662e-07\n",
+ "Value of MTBF is 6.018e+06 hours\n"
+ ]
+ }
+ ],
+ "prompt_number": 25
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-20 17:15:27 +0000