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← ScienceWhich outcome occurs when thermally-induced density fluctuations exceed threshold in a high-power laser?
A)Stimulated Brillouin scattering initiates✓
B)Mode-locking instability broadens pulse
C)Self-phase modulation induces chirping
D)Optical parametric amplification attenuates peak
💡 Explanation
Thermally-induced density fluctuations cause stimulated Brillouin scattering because the acoustic phonons amplify reflected light, reducing laser output; therefore backscattering dominates, rather than chirping. Thermal effects drive this outcome.
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