Net-gain from a parametric amplifier on a chalcogenide optical chip.
We report first observation of net-gain from an optical parametric amplifier in a planar waveguide. This was achieved in a low-loss As(2)S(3) planar waveguide, with a strong nonlinearity (gamma approximately 10 /W/m) and tailored anomalous dispersion yielding efficient Raman-assisted four-wave mixing at telecom wavelengths. The experiments were in good agreement with theory, and indicate a peak net-gain greater than +16 dB for the signal and idler (+30 dB neglecting coupling losses) and a broad bandwidth spanning 180 nm.
Lamont
Michael R E
MR
Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), School of Physics, University of Sydney, NSW 2006, Australia.
Luther-Davies
Barry
B
Choi
Duk-Yong
DY
Madden
Steve
S
Gai
Xin
X
Eggleton
Benjamin J
BJ
D018011:Chalcogens / Q000737:chemistry*; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D008962:Models, Theoretical; D055096:Optical Devices; D012542:Scattering, Radiation; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*
D018011:Chalcogens