Which diffraction outcome causes spectral broadening in lasers?

💡 Explanation

Self-phase modulation, a type of interference in laser cavities, generates new frequencies as pulse intensity varies, leading to spectral broadening, because of the time-dependent refractive index. Therefore, the answer is broadened spectra, rather than mode changes, because SPM directly induces new frequencies.

• Which outcome risks hydraulic pump failure if the Reynolds number exceeds a threshold?
• Which consequence results when hydraulic fluid velocity exceeds limits?
• Which outcome arises when coating thickness varies in spectral interferometry?
• Which outcome occurs in a capacitive discharge ignition (CDI) system when the silicon-controlled rectifier (SCR) fails to trigger?
• Which consequence results when variations in radio refractive index occur on an over-the-horizon radar installation?
• Which consequence results when the Carnot efficiency limit is reached during a refrigeration cycle?