Lasers & Optical Fibers physics notes vtu engineering

Lasers: Interaction of radiation with matter, Einstein’s coefficients (derivation of expression for energy density).Requisites of a Laser system. Conditions for Laser action. Principle, Construction, and working of CO2 and semiconductor Lasers. Application of Lasers in Defence (Laser range finder) and medical applications- Eye surgery and skin treatment.

Optical Fibers: Propagation mechanism, angle of acceptance, Numerical aperture, Modes of propagation, Types of optical fibers, Attenuation, and Mention of expression for attenuation coefficient. Discussion of a block diagram of point-to-point communication, Optical fiber sensors- Intensity based displacement sensor and Temperature sensor based on phase modulation, Merits, and demerits, and Numerical problems.

click here to get the Lasers & Optical Fibers physics notes

Comments

VTU 2nd Sem Professional Writing Skills in English [SET-2] Solved Model English Question Paper 21EGH28

“Researchers are finding harmful effects at lower levels of exposure.” How can this line be interpreted? “Researchers are finding harmful effects at lower levels of exposure.” How can this line be interpreted?

Raju is a Civil Engineer. He is writing software to automate his work. As a part of his requirement, he wants to calculate the circle diameter, circumference, and area. Help Raju to complete his task. Get radius as input.

OUTPUT

Write functions to implement string operations such as compare, concatenate, string length. Convince the parameter passing techniques Program and Algorithm Computer Science Engineering VTU

STRINGconcatenation #include<stdio.h> #include<stdlib.h> int length (char str[]); int compare (char str1[],char str2[]); void concatenate (char str1[],char str2[]); void main() { char str1[30],str2[30]; int choice,a,i,j; printf("enter 1-string comparision\n"); printf("enter 2-string length\n"); printf("enter 3-string concatenation\n"); printf("enter 4-exit\n"); scanf("%d",&choice); switch(choice) { case 1:printf("enter string 1\n"); scanf("%s",str1); printf("enter string 2\n"); scanf("%s",str2); a=compare(str1,str2); if(a==0) { printf("%s and%s are identical\n",str1,str2); } else { printf("%s and%s are not identical\n",str1,str2); } break; ...

Education with Tech

Search This Blog