Ultrafast, multi-THz-detuning, third-order frequency conversion in semiconductor quantum-well waveguides
- 1 August 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 4 (8) , 878-880
- https://doi.org/10.1109/68.149894
Abstract
The near-band-edge resonance nonlinearity of semiconductor quantum wells has been used 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 flat 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.Keywords
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