Fiber optics, Other Engineering

1. A very narrow laser beam in air is shone into a sphere of solid glass that has a uniform
refractive index n>1 and radius ? . The beam makes an angle a in air with the normal to
the surface of the sphere.
Sketch the path of the beam in the circular cross-section of the sphere defined by the
normal and the beam direction, and show all reflected and transmitted rays.
Explain why the beam cannot become a bound whispering gallery ray propagating around
the inside the glass-air surface of the sphere.
2. An asymmetric, multimode, step-profile slab waveguide has a core index of 1.49. The
cladding index above the core has value 1.47 and the cladding index below the core has
value 1.48. Rays propagate in the core in the x-z plane and make an angle ?z relative to
the z-axis along the centre of the waveguide.
(a) Determine the range of (positive) values of ?z in degrees for which only bound rays
will propagate along the waveguide.
(b) How many different types of rays can propagate along the waveguide?
Sketch a typical path for each type of ray.
(c) Determine the values of ?z in degrees that delineate between the 3 types of ray paths.
Posted Date: 3/25/2013 12:27:30 AM | Location : USA







Related Discussions:- Fiber optics, Assignment Help, Ask Question on Fiber optics, Get Answer, Expert's Help, Fiber optics Discussions

Write discussion on Fiber optics
Your posts are moderated
Related Questions
Q. What is slip? What is slip plane? What are principal if slip planes and slip direction for BCC, FCC and HCP crystal? Ans. X-ray diffraction studies show that the crystalli

State-estimators for continuous time linear systems The state space state and output equations of continuous time linear systems is of the form? x = Ax + Bu + v and y

original temp. of plate is 25 degree c.when put in burnace its upper part is 250 c and lower is 100 and mass is 56kg.find out heat transfer

THIN-FILM IC: Unlike the monolithic IC's, which are formed within a semiconductor material (substrate), the thin-film circuit is formed on the surface of an insulating substrat

Present Worth equivalence: Since we have developed the relationship to find a future value F given a present value P, we can easily derive the formula to find a (P|F, i, n), w

Passive clearance control system : Compressor discharge air and HP compressor air provide cooling airflow to protect the turbine casing against rapid temperature changes. Th


Approach The Hanley solver does solve for the boundary layer and potential flow (in a way we will think about later). However, it only gives us full access to the potential solu

Compressor stall and surge: ‘Surge' can occur in both centrifugal and axial flow compressors and is the reversal of the airflow in the compressor. It is a very undesirable con

im on my final year, My final project is to design a 2 story office building, i was wondering if i can get any help from this website