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Exam 4A0-205 topic 1 question 1 discussion

Actual exam question from Nokia's 4A0-205
Question #: 1
Topic #: 1
[All 4A0-205 Questions]

What is the definition of OSNR?

  • A. The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber, including both signal and optical noise.
  • B. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
  • C. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
  • D. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
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Suggested Answer: D 🗳️

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panicss
3 months, 2 weeks ago
average optical signal power and the average optical noise
upvoted 1 times
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nidaltliba
1 year, 3 months ago
Selected Answer: C
between the average optical signal power and the average optical noise power
upvoted 2 times
...
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B (20%)
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