Maximization of Gain in Slow-Light Silicon Raman Amplifiers

Figure 2

Contour plots of signal gain (in dB) for an 8 mm long SRA in the plane formed by the factors 𝑆_𝑠 and 𝑆_𝑝 varying in the range 1 to 10. The location marked by + corresponds to the peak gain of 17.7 dB. Here, 𝐼_𝑝0=30 MW/cm², 𝐼_𝑠0=0.1 MW/cm², 𝛼=1 dB/cm, and 𝜏_𝑐=0.2 ns. Other parameters are the same as in Figure 1. The red curve shows how the gain peak’s position drifts as 𝐼_𝑝0 changes from 15 MW/cm² at point A (10,5.13) to 300 MW/cm² at point B (2.9,1).