(a) Explain the origin of the transverse phase condition that results in the equation for a slab waveguide given below (b) (c) (d) 2nd √n? -n² = mπ + Sp 20 Explain what happens if this condition is not satisfied? Ignoring the G-H shift term, rearrange this equation for ne For a waveguide at a wavelength of 1.55um, a core index of 3.5 and a thickness of 2um, work out the effective indices for m= 1, 2, 3 and 4 What happens to the modal index as the m number increases? Why? Explain why the mode effective index for the m=1 is not 3.5
(a) Explain the origin of the transverse phase condition that results in the equation for a slab waveguide given below (b) (c) (d) 2nd √n? -n² = mπ + Sp 20 Explain what happens if this condition is not satisfied? Ignoring the G-H shift term, rearrange this equation for ne For a waveguide at a wavelength of 1.55um, a core index of 3.5 and a thickness of 2um, work out the effective indices for m= 1, 2, 3 and 4 What happens to the modal index as the m number increases? Why? Explain why the mode effective index for the m=1 is not 3.5
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(a) Explain the origin of the transverse phase condition that results in the equation for
a slab waveguide given below
(b)
(c)
(d)
(1)
2nd√/n²-n²
20
= mл+Sp
Explain what happens if this condition is not satisfied?
Ignoring the G-H shift term, rearrange this equation for n
For a waveguide at a wavelength of 1.55um, a core index of 3.5 and a thickness
of 2um, work out the effective indices for m= 1, 2, 3 and 4
What happens to the modal index as the m number increases? Why?
Explain why the mode effective index for the m-1 is not 3.5
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