Q. Determine ratio of SNR of coaxial system to SNR of fiber system if peak output voltage is 5V, quantum efficiency of 70%, optical power is 1 mW, wavelength of 0.85 μm.

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Q. Determine the peak output voltage if efficiency is 70%, wavelength is 0.85 μm and output power is 1 mW.

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Q. Determine the efficiency of a coaxial cable system at 17 degree Celsius with peak output voltage 5V, 0.85 μm wavelength and SNR ratio of 1.04 * 10⁴.

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Q. Determine the wavelength of a coaxial cable system operating at temperature 17 degree Celsius at output voltage of 5V, 100Ω impedance, optical power of 1 mW, 70% quantum efficiency.

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Q. Determine the impedance of a coaxial cable system operating at temperature 17 degree Celsius at output voltage of 5 V, 0.85 μm wavelength, optical power of 1 mW, 70% quantum efficiency and SNR ratio of 1.04 * 10⁴.

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Q. The 10⁻90% rise times for components used in D-IM analog optical link is given. (LED=10 ns, Intermodal=9 ns/km, Chromatic=2 ns/km, APD = 3 ns). Link is of 5 km. Determine the total rise time.

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Q. The 10⁻90% rise times for components used in D-IM analog optical link is given. (LED=10 ns, Intermodal=9 ns/km, Chromatic=2 ns/km, APD = 3 ns). Link is of 5 km. It has an optical bandwidth of 6 MHz. Determine maximum permitted system rise time.

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Q. What is the full form of ETDM?

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Q. The practical limitations of the speed of electronic circuits have been pushed towards operational frequencies around ___________

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Q. A strategy used for increasing the bitrate of digital optical fiber systems beyond the bandwidth capabilities of the drive electronics is known as ___________

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Q. ____________ semiconductor laser sources provide low duty cycle pulse streams for subsequent time multiplexing.

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Q. ______________ are the devices which are employed to eliminate the laser chirp.

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Q. _____________ provides operation at high transmission rate.

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Q. In __________ the microwave frequency are modulated with an optical carrier and transmitted using a single wavelength channel.

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Q. Which of the following techniques is easy to implement?

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Q. Which of the following is the disadvantage of SCM?

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Q. In CATV, the signal must be received with a carrier to noise ratio of between __________

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Q. The IF signal can be input to a demodulator to recover the baseband signal.

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Q. Which of the following is not a drawback of regenerative repeater?

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Q. The term flexibility, in terms of optical amplifiers means the ability of the transmitted signal to remain in the optical domain in a long haul link.

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