Nondegenerate Four-Wave Mixing in Quantum Dot Distributed Feedback Lasers

摘要

We present wavelength conversion using nondegenerate four-wave mixing in loss-coupled distributed feedback lasers based on InAs quantum dots (QDs) grown on a GaAs substrate. The conversion efficiency is measured to be -15 to -30 dB for a signal-pump detuning range from 0.33 to 8 nm. The third-order optical susceptibility ((chi)~((3))) normalized to the optical linear gain in the QDs is estimated to be 3 X 10~(-20) m~(3)/V~(2) to 9 X 10~(-20) m~(3)/V~(2) for the signal-pump detuning range.