Q. Determine dispersion equalization penalty if total RMS pulse broadening is 4.8 ns, Bᴛ is 25 Mbits/s.

View solution

Q. Determine RMS pulse broadening with mode coupling if pulse broadening is 0.6 over 8km.

View solution

Q. Determine dispersion equalization penalty with mode coupling of 1.7 ns if Bᴛ is 25 Mbits/s.

View solution

Q. Determine dispersion equalization penalty without mode coupling if Bᴛ is 150 Mbits/s and total rms pulse broadening is 4.8 ns.

View solution

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.

View solution

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

View solution

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.

View solution

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.

View solution

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.

View solution

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.

View solution

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.

View solution

Q. What is the full form of ETDM?

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. _____________ provides operation at high transmission rate.

View solution

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

View solution

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

View solution

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

View solution