Optical Communication Mock Test 7

1. For used in single-mode fiber __________ are used preferably.

2. An SOA has noise power spectral density of 1.18mW, spontaneous emission factor of 4, optical bandwidth of 1.5 THz. Determine mode number.

3. Compute signal power for parametric amplifier having length of 500, nonlinear gain coefficient 12.6×10^-3 W^-1km^-1 and parametric peak gain of 63.9 dB.

4. ______________ are operated at current beyond normal lasing threshold current, practically.

5. In the XGM converter, the transfer function maintains the rectangular shape.

6. The use of light as an electromagnetic wave of high frequency provides high speed operation around ____________ times the conceivable employing electronic circuits.

7. The linear variation of refractive index with the electric field is known as the ________

8. Thin transparent dielectric layers on planar substrates are used in _________ and ______ devices.

9. To avoid large chip __________ devices are used.

10. The optical medium, in case of optical wavelength conversion is ___________