Single longitudinal mode operation is obtained by

Related MCQs

• Single mode fibers allow single mode propagation; the cladding diameter must be at least
• Device which apply the frequency-selective feedback technique to provide single longitudinal operation are referred to as ________________
• A single mode fiber has mode field diameter 10.2μmand V=2.20. What is the core diameter of this fiber?
• Average insertion losses as low as _________ have been obtained with multimode graded index and single-mode fibers using ceramic capillaries.
• An optical fiber has core-index of 1.480 and a cladding index of 1.478. What should be the core size for single mode operation at 1310nm?
• A step-index fiber has core refractive index 1.46 and radius 4.5μm. Find the cutoff wavelength to exhibit single mode operation. Use relative index difference as 0.25%.
• A step-index fiber has core refractive index 1.46 and radius 4.5μm. Find the cutoff wavelength to exhibit single mode operation. Use relative index difference as 0.25%.
• Standard single mode fibers (SSMF) are utilized mainly for operation in
• Longitudinal modes contribute only a single spot of light to the laser output. State whether the given statement is true or false.
• Better confinement of optical mode is obtained in