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VOLUME 29 (1979) | ISSUE 11 | PAGE 709
Observation of a dip in the spontaneous emission spectrum and a saturation of generation in single-mode semiconductor lasers
We observed a dip in the spontaneous emission spectrum near the generation frequency. Threshold power for the dip occurrence, its width and dependence of width on intensity all permit us to interpret the effect as the formation of a gap in the electron energy spectrum. Saturation of single-mode generation is observed prior to threshold for occurrence of the second mode. Magnitude of threshold power and its quadratic dependence on photon lifetime in a cavity are in agreement with the kinetic laser theory.