Sapphire ball lens expanded beam design is successful than spherical lens coupled design. State whether the given statement is true or false.

Related MCQs

• Lens-coupled expanded beam connectors exhibit average losses of _________ in case of single mode and graded index fibers.
• If a particular optical power is coupled from an incoherent LED into a low-NA fiber, the device must exhibit very high radiance . State whether the given statement is true or false.
• GRIN-rod lens connectors have loss characteristics which are independent of the modal power distribution in the fiber. State whether the given statement is true or false.
• The fiber is positioned at the ________ of the lens in order to obtain a collimated beam and to minimize lens-to-lens longitudinal misalignment effects.
• Fiber based lasers provide diffraction-limited power at higher levels than solid-state laser. State whether the given statement is true or false
• Graded index fibers produced by liquid-phase melting technique are less dispersive than step-index fibers. State whether the given statement is true or false.
• The insertion losses of the fiber splices are much less than the Fresnel reflection loss at a butted fiber joint. State whether the given statement is true or false.
• Fabry-Perot devices with BH geometries high modulation speeds than DFB-BH lasers. State whether the given statement is true or false
• Plastic fibers are less widely used than glass fibers. State whether the statement is true or false.
• Conventional optical fibers has more transmission losses than photonic crystal fibers. State whether the statement is true or false.