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Which consequence results when a pulsed laser in a materials microprocessing system experiences Q-switching failure?

A)Pulse duration unexpectedly increases
B)Beam coherence increases dramatically
C)Wavelength shifts to ultraviolet
D)Far-field divergence approaches zero

💡 Explanation

When Q-switching fails, stimulated emission reduction diminishes, because the quality factor isn't properly modulated; therefore the gain remains high, resulting in extended lower intensity pulses, rather than short powerful ones unlike other modulation parameters

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