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← ScienceWhich consequence results when thermal stress causes a laser crystal's birefringence to vary spatially?
A)Gain medium exceeds breakdown threshold
B)Polarization aberrations increase rapidly✓
C)Wavelength shifts far into infrared
D)Non-linear efficiency increases instead
💡 Explanation
Thermally induced stress varies the refractive index, thereby causing spatially varying changes in polarization through the mechanism of birefringence. Therefore, polarization aberrations significantly increase, rather than the wavelength shifting or gain exceeding any breakdown threshold, because those are caused by different factors.
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