doped fiber amplifier can be used in the can be used in the

doped fiber amplifier can be used in the can be used in the wavelength range of 2t. An Erbium doped fiber A 800-850 nm 8 1300-1350 nm C. 1400-1450 nm D 1520-1560 nm Which of the following statements is true? A Splices are 22. Which of the are used for connecting optical fibers to transmitters and connectors ae and connectors are used for joining fibers to receivers. are used for connecting optical fibers to transmitters and receivers Connectors are used for 6. c. Splices are used for connecting opti D. Connectors are used for B. are used for connecting optical fibers to transmitters and ical fibers to transmitters and receivers. are used for connecting optical fibers to transmitters and splices are used for joining fibers to receivers. 23 Single mode fibers are more popular than multimode fibers ar than multimode fibers because A they carry smaller amount of power A. B. they do not have modal dispersion C. they do not need splicing D. they do not have attenuation 24. The output power of an optical amplifier is given by the relation Po relation Puput Pxgain x leng under the condition of A low gain B. low input power C. long length D. high input power 25. Spectral line width of the optical source plays a major role in A Calculating the power budget. B. Calculating the short noise in photodiodes C. Calculating the pulse spreading. D. Calculating the connector loss. 26. For NRZ-coded digital signals with a rise time of 0.1 ns the data rate is A. 7.0 Gbit/s B. 3.5 Gbit/s C. 1.75 Gbit/s D. 0.875 Gbit\'s 26

Solution

21.

The actual range is 1525 nm – 1565 nm.

option D is close to actual range. So, the correct answer is option D.

@expert: Muliple questions and ranges dont need explanation.