Abstract
Summary form only given. Optical phase conjugation through nearly degenerate four-wave mixing (NDFWM) in semiconductor lasers has attracted considerable attention since being first demonstrated by Nakajima and Frey (1985). Such interest arises due to the very high conjugate reflectivity of order 30-40 dB which can be achieved owing to the amplifying effect of the semiconductor gain medium and cavity enhancement of the mixing process. The paper is focused on an experimental study of NDFWM in a two-section single cavity Fabry-Perot (TSSC FP) laser diode for different probe injection powers. We present results on the conjugate reflectivity dependence of the frequency detuning subject to different injection power. It is shown that the conjugate reflectivity is dependent on optical probe injection into either section of a TSSC FP laser diode, injection power and bias current condition.
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