Lasing obtained in __________ when 191 mW of pump light at a wavelength of 0.477 μm is launched into laser.

Related MCQs

• The beat length in a single mode optical fiber is 8 cm, when light from a laser with a peak wavelength 0.6μm is launched into it. Estimate the modal birefringence.
• An injection laser has active cavity losses of 25 cm-1and the reflectivity of each laser facet is 30%. Determine the laser gain coefficient for the cavity it has a length of 500μm.
• The thulium doped fiber laser when pumped with alexandrite laser output at 0.786 μm, the laser emits at
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• The lasing output of the basic Fabry-perot cavity fiber is restricted to between ____________
• _______________ occurs as a result of the change in lasing frequency with gain
• The lasing line-width of Fox-smith resonator is ____________________
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• The optical source used in a fiber is an injection laser with a relative spectral width σλ/λ of 0.0011 at a wavelength of 0.70μm. Estimate the RMS spectral width.
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