Net continuous wave optical gain in a low loss silicon-on-insulator waveguide by stimulated Raman scattering.
We observe for the first time net continuous wave optical gain in a low loss silicon-on-insulator waveguide based on stimulated Raman scattering. We show that nonlinear optical loss due to two-photon absorption induced free carrier absorption can be significantly reduced by introducing a reverse biased p-i-n diode in the waveguide. For a 4.8 cm long waveguide with an effective core area of ~1.6 microm2, we obtain a net CW Raman gain of > 3dB with a pump power of ~700mW inside the waveguide.
Jones
Richard
R
Rong
Haisheng
H
Liu
Ansheng
A
Fang
Alexander
A
Paniccia
Mario
M
Hak
Dani
D
Cohen
Oded
O