Explore topic-wise MCQs in Optical Communication.

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