Problem 5: [12 Marks) An optical fiber composed of core with refractive index (nl=1.5) and a cladding (n2=1.2) a) Comput

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Problem 5 12 Marks An Optical Fiber Composed Of Core With Refractive Index Nl 1 5 And A Cladding N2 1 2 A Comput 1 (60.21 KiB) Viewed 68 times

Problem 5: [12 Marks) An optical fiber composed of core with refractive index (nl=1.5) and a cladding (n2=1.2) a) Compute the critical angle? [2] b) What is the condition for total internal reflection?[2] c) Compute the acceptance angle?[2] d) Assume the used fiber has a core with diameter = 50 um, and operates at a wavelength of 850 nm. Compute the number of modes in Multimode step Index fiber?[4] Compute the number of modes in Graded Index fiber?[2] Constants Boltzmann's Constant: 1.38 *10-23 Earth Acceleration (g)=9.81 m/s2 Il = 3.986 x 101m/s? Radius of Earth (R) 0370 km