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← ScienceWhich risk increases when pushing a semiconductor laser diode far above its rated output power?
A)Increased spontaneous emission noise floor✓
B)Wider quantum well's optical mode
C)Shrinking of the electron's effective mass
D)Augmented waveguide confinement factor
💡 Explanation
Operating a laser diode far beyond its design causes band population inversion to saturate and spontaneous emission grows. Enhanced spontaneous emission happens because stimulated emission is overwhelmed; therefore the noise increases, rather than alternative quantum effects due to increased drive.
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