Abstract
This paper presents the first quantitatively measured results of detuning and spatial characteristics of the phase conjugate wave which is emitted from a Fabry-Perot cavity-type InGaAlP laser. Bandwidth of a nearly-degenerate four-wave mixing was confirmed to be due to the relaxation oscillation frequency of the laser. The reflectivity of the phase conjugate mirror and the amplification gain were larger than 10 and 100, respectively. By the off-axial injection of the probe beam to a broad stripe laser, the emitted phase conjugate wave was separated spatially from the pump beam. Non-degenerate four-wave mixing characteristics of an AlGaAs laser were also measured for the first time. Its 3-dB cutoff frequency was as large as 0.1 THz, which was determined by the reciprocal of the half-cycle time of the intracavity light-wave.
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