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← ScienceWhich outcome results when elevated electron energy input causes population inversion in the semiconductor gain medium of a solid-state laser?
A)Increased coherent photon emission✓
B)Reduced thermal carrier scattering
C)Decreased refractive index gradient
D)Enhanced pump power consumption
💡 Explanation
Elevated energy favors filling of higher energy bands leading to population inversion. Amplified spontaneous emission (ASE) increases because stimulated emission overcomes absorption, therefore coherent photon output is strengthened rather than the alternatives linked with optical or pump losses.
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