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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 4: Optical Detectors"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 4.1: Response_time_of_PIN_photodetector.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 4\n",
"//page no 99\n",
"//given\n",
"clc;\n",
"Tn=5; //in micrometer\n",
"Vs=10^7; //in m/s\n",
"tr=Tn*10^-6/Vs;\n",
"disp('ps',tr/10^-12,'Response time');"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 4.2: MTBF_of_photodetector.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 4\n",
"//page no 106\n",
"//given\n",
"clc;\n",
"//calculate Tf\n",
"Pd=1.15; //in mW\n",
"//calculate Tj\n",
"TA=25; //in deg C\n",
"theta_JA=200; //in C/W for hermetric led\n",
"TJ=TA+theta_JA*Pd/10^3;\n",
"TF=8.01*10^12 *%e^-(8111/(TJ+273));\n",
"printf('\n Value of TJ is %0.2f deg C\n',TJ);\n",
"printf('\n Value of TF is %0.2f deg C\n',TF);\n",
"//calculate RF\n",
"BF=1.1*10^-3; //from table\n",
"QF=0.5; //from table\n",
"EF=1; //from table\n",
"RF=BF*TF*EF*QF*1/10^6;\n",
"disp(RF,'Value of RF');\n",
"printf('\n Value of MTBF is %0.0f*10^6 hours \n',1/RF/10^6);"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 4.3: Photon_Lifetime.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Chapter 4\n",
"//page no 114\n",
"//given\n",
"clc;\n",
"R1=0.7;\n",
"R2=0.99;\n",
"ad=0.1;\n",
"//compute Ld\n",
"Ld=1-R1*R2*%e^-(2*ad);\n",
"printf('\n Decay Loss %0.4f \n',Ld);\n",
"trt=40;//fs\n",
"tph=trt/Ld;\n",
"printf('\n Photon lifetime %0.2f fs\n',tph);\n",
"BW=1/tph;\n",
"printf('\n Bandwidth %0.1f Thz\n',BW*1000);//Answer in Thz \n",
""
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Scilab",
"language": "scilab",
"name": "scilab"
},
"language_info": {
"file_extension": ".sce",
"help_links": [
{
"text": "MetaKernel Magics",
"url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
}
],
"mimetype": "text/x-octave",
"name": "scilab",
"version": "0.7.1"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
