Title :
Conversion efficiency and bandwidth of THz optical frequency conversion in a semiconductor laser
Author :
Li, L. ; Petermann, K.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Berlin, Germany
fDate :
8/1/1993 12:00:00 AM
Abstract :
A theory of THz optical frequency conversion using highly nondegenerate four-wave mixing (FWM) in a semiconductor laser is presented by small signal analysis. The analytical expressions for the conversion efficiency and the bandwidth of the converted signal are given. The optical frequency conversion is attributed to the mechanism of cavity enhanced highly nondegenerate FWM in a semiconductor laser in a range of 1 THz detuning frequency between the pump and the probe waves when the probe frequency is tuned close to one of the resonance modes. The frequency conversion is mainly introduced by the nonlinear gain effect when the detuning frequency is very high
Keywords :
laser theory; laser tuning; multiwave mixing; optical frequency conversion; semiconductor lasers; THz optical frequency conversion; bandwidth; cavity enhanced highly nondegenerate FWM; conversion efficiency; detuning frequency; nondegenerate four-wave mixing; nonlinear gain effect; probe waves; pump waves; resonance modes; semiconductor laser; small signal analysis;
Journal_Title :
Optoelectronics, IEE Proceedings J
