Ultrafast, Multi-THz-Detuning, Third-Order Frequency Conversion in SemiconductorQuantum-Well Waveguides. (Reannouncement with New Availability Information)

摘要

The near-band-edge resonance nonlinearity of semiconductor quantum wells has beenused to obtain nondegenerate four-wave mixing over a multi-THz frequency detuning range, with large conversion efficiencies. In 1-mm-long, passive AlGaAs/GaAs single-quantum-well waveguides, conversion efficiencies up to -8.5 dB with relatively Hat response have been observed over a 7.5-THz range (2.2% of the band gap). The nonlinearity is ultrafast and primarily reactive. The potential application of this technique to wavelength shifting devices is discussed....Multi-THz-detuning, Third-order frequency conversion, Quantum-well waveguides.