Observation of nearly degenerate and cavity-enhanced highly nondegenerate four-wave mixing in semiconductor lasers
- 31 May 1993
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 62 (22) , 2757-2759
- https://doi.org/10.1063/1.109630
Abstract
Both nearly degenerate four-wave mixing (FWM) and cavity-enhanced highly nondegenerate four-wave mixing have been studied in a GaAs/AlGaAs semiconductor laser operated above threshold. It is observed that the cavity-enhanced highly nondegenerate FWM signal is of the same order as the nearly degenerate FWM signal. A four-wave mixing signal enhancement of about 90 dB as compared to the background signal is observed at the pump-probe detuning corresponding to the round-trip frequency of the pump laser. The probe amplification is measured in the same frequency range and a large enhancement is also observed.Keywords
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