10.a. An SOA is usually used with signals in the A. L band. B. O band. C. C band. D. S band. 10.b. A 2.0 dBm signal is sent into a 1 × 10 tree coupler. What's the output signal strength from this...

10.a. An SOA is usually used with signals in the
A. L band.
B. O band.
C. C band.
D. S band.
10.b. A 2.0 dBm signal is sent into a 1 × 10 tree coupler. What's the output signal strength from this coupler?
A. –8.3 dB
B. –0.83 dBm
C. –10.3 dBm
D. –8.3 dBm