at C is measured to be 3.74 r d what is the output power:
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4. Part of an integrated photonics circuit is shown in Figure 2. All of the 90-degree waveguide
bends have a radius of R = 100 um. 10 mW is injected into the input of the 2x2 50/50 splitter.
a) What is the optical power in dBm at points A and B?
b) The optical power at point C is measured to be 3.74 mW. What is the waveguide loss in this
optical circuit (in dB/cm) and what is the output power at point D in dBm?
R
R
R
50/50
Input
Figure 2
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