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+{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:ac520a54154462ad172aef8bbb865642cb1f987c781ea69ea1084ba6e27e7f6b"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter06: Advanced Optical Systems"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.5.1:Pg-6.11"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "import math\n",
+ "lamda_p= 980*10**-9 \n",
+ "lamda_s=1550*10**-9 \n",
+ "P_in=30 # in mW....\n",
+ "G=100 \n",
+ "\n",
+ "Ps_max= ((lamda_p*P_in)/lamda_s)/(G-1) \n",
+ "print \" \\nMaximum input power in mW = \",round(Ps_max,5) \n",
+ " \n",
+ "Ps_out= Ps_max + (lamda_p*P_in/lamda_s) \n",
+ "Ps_out= 10*math.log10(Ps_out) \n",
+ "print \" \\n\\nOutput power in dBm = \",round(Ps_out,2)\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " \n",
+ "Maximum input power in mW = 0.19159\n",
+ " \n",
+ "\n",
+ "Output power in dBm = 12.82\n"
+ ]
+ }
+ ],
+ "prompt_number": 13
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.5.2:Pg-6.12"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "# Given\n",
+ "import math\n",
+ "Ps_out= 30.0 # in uW...\n",
+ "Ps_in=1.0 \n",
+ "Noise_power = 0.5 \n",
+ "\n",
+ "G= Ps_out/Ps_in \n",
+ "\n",
+ "G= 10*math.log10(G) \n",
+ "print \" \\nThe Gain EDFA in dB = \",round(G,2) \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " \n",
+ "The Gain EDFA in dB = 14.77\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.10.1:Pg-6.22"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "import math\n",
+ "P0=200.0 \n",
+ "P1=90.0 \n",
+ "P2=85.0 \n",
+ "P3=6.3 \n",
+ " # All powers in uW...\n",
+ "coupling_ratio= P2/(P1+P2)*100 \n",
+ "print \" \\n\\n Coupling Ratio in % = \",round(coupling_ratio,2) \n",
+ "excess_ratio= 10*math.log10(P0/(P1+P2))\n",
+ "print \" \\n\\n The Excess Ratio in % = \",round(excess_ratio,4) \n",
+ "insertion_loss=10*math.log10(P0/P1) \n",
+ "print \" \\n\\n The Insertion Loss (from Port 0 to Port 1) in dB= \",round(insertion_loss,2) \n",
+ "insertion_loss1=10*math.log10(P0/P2) \n",
+ "print \" \\n\\n The Insertion Loss (from Port 0 to Port 2) in dB= \",round(insertion_loss1,2) \n",
+ "cross_talk=10*math.log10(P3/P0) \n",
+ "print \" \\n\\n The Cross Talk in dB= \",int(cross_talk) \n",
+ "print \" \\n\\n***NOTE: Cross Talk calculated wrognly in book... Value of P3 wrognly taken\" \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " \n",
+ "\n",
+ " Coupling Ratio in % = 48.57\n",
+ " \n",
+ "\n",
+ " The Excess Ratio in % = 0.5799\n",
+ " \n",
+ "\n",
+ " The Insertion Loss (from Port 0 to Port 1) in dB= 3.47\n",
+ " \n",
+ "\n",
+ " The Insertion Loss (from Port 0 to Port 2) in dB= 3.72\n",
+ " \n",
+ "\n",
+ " The Cross Talk in dB= -15\n",
+ " \n",
+ "\n",
+ "***NOTE: Cross Talk calculated wrognly in book... Value of P3 wrognly taken\n"
+ ]
+ }
+ ],
+ "prompt_number": 34
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.10.2:Pg-6.23"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "import math\n",
+ "P0= 300.0 \n",
+ "P1=150.0 \n",
+ "P2=65.0 \n",
+ "P3=8.3*10**-3 \n",
+ " # All powers in uW...\n",
+ "splitting_ratio= P2/(P1+P2)*100 \n",
+ "print \" \\n\\n Splitting Ratio in %= \",round(splitting_ratio,2) \n",
+ "excess_ratio= 10*math.log10(P0/(P1+P2))\n",
+ "print \" \\n\\n The Excess Ratio in dB= \",round(excess_ratio,4)\n",
+ "insertion_loss=10*math.log10(P0/P1) \n",
+ "print \" \\n\\n The Insertion Loss (from Port 0 to Port 1) in dB= \",round(insertion_loss,2) \n",
+ "cross_talk=10*math.log10(P3/P0) \n",
+ "print \" \\n\\n The Cross Talk in dB= \",round(cross_talk,2) \n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " \n",
+ "\n",
+ " Splitting Ratio in %= 30.23\n",
+ " \n",
+ "\n",
+ " The Excess Ratio in dB= 1.4468\n",
+ " \n",
+ "\n",
+ " The Insertion Loss (from Port 0 to Port 1) in dB= 3.01\n",
+ " \n",
+ "\n",
+ " The Cross Talk in dB= -45.58\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.10.3:Pg-6.25"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "import math\n",
+ "N=32.0 \n",
+ "Ft=(100-5)/100.0 \n",
+ "Total_loss= 10*(1-3.322*math.log10(Ft))*math.log10(N) \n",
+ "print \" The total loss in the coupler in dB = \",round(Total_loss,2) \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " The total loss in the coupler in dB = 16.17\n"
+ ]
+ }
+ ],
+ "prompt_number": 27
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.10.4:Pg-6.28"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "N=10 \n",
+ "L=0.5 \n",
+ "alpha=0.4 \n",
+ "Lthru=0.9 \n",
+ "Lc=1 \n",
+ "Ltap=10 \n",
+ "Li=0.5 \n",
+ "Total_loss= N*(alpha*L +2*Lc +Lthru+Li)-(alpha*L)-(2*Lthru)+(2*Ltap) \n",
+ "print \" The total loss in the coupler in dB = \",int(Total_loss)\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " The total loss in the coupler in dB = 54\n"
+ ]
+ }
+ ],
+ "prompt_number": 30
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Ex6.11.1:Pg-6.33"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "del_v=10*10**9 \n",
+ "N_eff= 1.5 \n",
+ "c=3*10**11 # speed of light in mm/sec\n",
+ "del_L= c/(2*N_eff*del_v) \n",
+ "print \" The wave guide length differenc in mm= \",int(del_L) \n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " The wave guide length differenc in mm= 10\n"
+ ]
+ }
+ ],
+ "prompt_number": 33
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-01-10 10:38:08 +0000