A symmetric three-layer slab guide has a core region 0.4mu m thick. Its index is 3.4 and that of the
cladding regions is 3.2 .
a. Determine the ray angle for the reflecting plane waves that make up the
fundamental TE guided mode.
b. What guide width will provide the same ray angle for the first higher-order
odd TE mode?
c. If the cladding index were changed to 3.0 on one side, what guide width
would be necessary to obtain the same ray angle for the fundamental TE mode?
Assume lambda =1.55mu m.
3. A symmetric three-layer slab guide has a core region 0.4um thick. Its index is 3.4 and that of the cladding regions is 3.2.
a. Determine the ray angle for the reflecting plane waves that make up the
fundamental TE guided mode.
b. What guide width will provide the same ray angle for the first higher-order
odd TE mode?
c. If the cladding index were changed to 3.o on one side, what guide width
would be necessary to obtain the same ray angle for the fundamental TE mode? Assume X=1.55um