When considering source-to-fiber coupling efficiencies, the                  is an important parameter than total output power.

Related MCQs

• Considering the values given below, calculate the mode separation in terms of free space wavelength for a laser. (Frequency separation = 2GHz, Wavelength = 0.5 μm)
• A high-impedance amplifier has an effective input resistance of 4MΩ. Find the maximum bandwidth that may be obtained without equalization if the total capacitance is 6 pF and total effective load resistance is 2MΩ.
• The measured output power at ports 2,3 and 4 are 0.003, 23.0 and 24.5 μW respectively. Determine the excess loss.
• Longitudinal modes contribute only a single spot of light to the laser output.
• Compute multiplication factor of RAPD with output current of 10 μAand photocurrent of 0.369μA.
• Determine the output current of RAPD having multiplication factor of 39 and photocurrent of 0.469μA.
• Compute the photocurrent of RAPD having multiplication factor of 36.7 and output current of 7μA.
•                  couplers combine the different wavelength optical signal onto the fiber or separate the different wavelength optical signal output from the fiber.
• A                            coupler comprises a number of cascaded stages, each incorporating three or four-port FBT couplers to obtain a multiport output.
• A multimode graded index fiber exhibits a total pulse broadening of 0.15μsover a distance of 16 km. Estimate the maximum possible bandwidth, assuming no intersymbol interference.