Optical Communication Practice Test 9

1. Calculate value of dimensionless parameter if bit period is 45ps and RZ pulse width is 4 ps.

2. Which technique was started for narrowing of injection laser line widths?

3. ___________ removes the light propagating in the cladding.

4. A multicarrier modulation format in which there has been growing interest to compensate for impairments in optical fiber transmission systems is _______________

5. What does ‘a’ stands for in the given equation?

Mg=(πa/λ)2(n12 - n22)

6. The detailed knowledge of the refractive index profile predicts the __________ of the fiber.

7. External modulation for ________ modulation format allows the most sensitive coherent detection mechanism.

8. The frequency deviation at frequencies above 1 MHz is typically ____________

9. _____________ is essentially a crude form of Amplitude shift keying.

10. The line width in the range ________ of bit rate is specified for ASK heterodyne detection.