Explore topic-wise MCQs in Optical Communications Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

An analog optical fiber system operating at wavelength 1μmhas a post-detection bandwidth of 5MHz. Assuming an ideal detector and incident power of 198 nW, calculate the SNR (f = 2.99×1014Hz).

A. 46
B. 40
C. 50
D. 52
Answer» D. 52
Discussion
2.

For a given optical fiber communication system, P(e) = 10-9, Zm = 20.7, f = 2.9×1014, η = 1. Find the minimum pulse energy or quantum limit.

A. 3.9×10-18
B. 4.2×10-18
C. 6.2×10-14
D. 7.2×10-14
Answer» B. 4.2×10-18
Discussion
3.

A digital optical fiber communication system requires a maximum bit-error-rate of 10-9. Find the average number of photons detected in a time period for a given BER.

A. 19.7
B. 21.2
C. 20.7
D. 26.2
Answer» D. 26.2
Discussion