In the optical integrated circuit shown above, all of the waveguides have the same cross sectional dimensions and loss per unit length due to scattering and absorption. However, the curved waveguides...

In the optical integrated circuit shown above, all of the waveguides have the

same cross sectional dimensions and loss per unit length due to scattering and

absorption. However, the curved waveguides have an additional loss per unit

length due to radiation.

If the total loss between the following elements is:

Between D and E LT = 1.01 dB

Between C and D LT = 1.22 dB

Between B and C LT = 1.00 dB.

What is the total loss LT between elements A and B? (Neglect coupling losses -

consider only waveguide loss as above.)