

MCQOPTIONS
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This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communication knowledge and support exam preparation. Choose a topic below to get started.
1. |
The use of __________ was undertaken to separate the polarization in an analog to digital conversion. |
A. | FSK |
B. | DSP |
C. | ASK |
D. | DP-FSK |
Answer» C. ASK | |
2. |
The asynchronous heterodyne detection is _________ more sensitive than the dual filter direct detection FSK receiver. |
A. | 0.9 dB |
B. | 0.23 dB |
C. | 0.43 dB |
D. | 0.40 dB |
Answer» E. | |
3. |
FSK synchronous detection is _________ more sensitive than asynchronous heterodyne detection. |
A. | 0.24 dB |
B. | 0.45 dB |
C. | 0.9 dB |
D. | 0.12 dB |
Answer» C. 0.9 dB | |
4. |
___________ can also be used in place of multilayered filters in the dual filter direct detection FSK receiver. |
A. | Bragg gratings |
B. | Ceramic gratings |
C. | Aluminum arsenide |
D. | Bragg diodes |
Answer» B. Ceramic gratings | |
5. |
BER of FSK modulation scheme is ________ as/to the ASK modulation scheme. |
A. | Twice |
B. | Thrice |
C. | Unequal |
D. | Same |
Answer» E. | |
6. |
FSK modulation is attributed to the use of __________ frequencies unlike ASK modulation. |
A. | One |
B. | Three |
C. | Two |
D. | Four |
Answer» D. Four | |
7. |
ASK with heterodyne detection can achieve same SNR limit as ASK with asynchronous detection. |
A. | True |
B. | False |
Answer» B. False | |
8. |
The use of _________ was undertaken to separate the polarizations in an analog to digital conversion? |
A. | FSK |
B. | DSP |
C. | ASK |
D. | DP-FSK |
Answer» C. ASK | |
9. |
The asynchronous heterodyne detection is ________ more sensitive than the dual filter direct detection FSK receiver. |
A. | 0.9 dB |
B. | 0.23 dB |
C. | 0.43 dB |
D. | 0.40 dB |
Answer» E. | |
10. |
FSK synchronous detection is _______ more sensitive than asynchronous heterodyne detection. |
A. | 0.24 dB |
B. | 0.45 dB |
C. | 0.9 dB |
D. | 0.12 dB |
Answer» C. 0.9 dB | |
11. |
_________ can also be used in place of multilayered filters in the dual filter direct detection FSK receiver. |
A. | Bragg gratings |
B. | Ceramic gratings |
C. | Aluminum arsenide |
D. | Bragg diodes |
Answer» B. Ceramic gratings | |
12. |
BER of FSK modulation scheme is _______ as/to the ASK modulation scheme. |
A. | Twice |
B. | Thrice |
C. | Unequal |
D. | Same |
Answer» E. | |
13. |
FSK modulation is attributed to the use of ______ frequencies unlike ASK modulation. |
A. | One |
B. | Three |
C. | Two |
D. | Four |
Answer» D. Four | |
14. |
In a ______________ receiver, the analyses of signal and noise phenomena are more complicated than in the IM-DD case. |
A. | Homodyne |
B. | Heterodyne |
C. | Circular |
D. | Heterogeneous |
Answer» C. Circular | |
15. |
ASK with heterodyne detection can achieve same SNR limit as ASK with asynchronous detection. State whether the given statement is true or false. |
A. | True |
B. | False |
Answer» B. False | |