Optical Communication Practice Test 9

1. The _________ wavelength is defined as the wavelength greater than which the ratio of the total power and the fundamental mode power has to be decreased to less than 0.1dB.

2. How many parameters are usually worked upon by the measurement techniques in attenuation?

3. BER of FSK modulation scheme is ________ as/to the ASK modulation scheme.

4. _______________ method does not require a leaky mode correction factor or equal mode excitation.

5. The performance degradation due to nonlinear phase noise is referred to as _____________

6. _____________ may be achieved by replacing the optical fibers with thin resistance wires.

7. What is the main attraction of the optical homodyne detection?

8. The effective cutoff wavelength for a cabled single mode fiber will be generally smaller than that of the un-cabled fiber.

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

10. Frequency domain measurement is the preferred method for acquiring the bandwidth of multimode optical fibers.