Research Article
Possibilities for Advanced Encoding Techniques at Signal Transmission in the Optical Transmission Medium
Table 3
Comparison of selected modulation techniques implemented for the optical transmission system.
| | Modulation techniques | Parameters | Fiber length km | | 40 | 80 | 120 | 160 | 200 | 240 | 280 | 320 |
| | OOK | BER [ | 10−12 | 10−12 | 10−12 | 10−9 | 10−2 | 10−1 | 10−1 | 10−1 | | OSNR [dB | 25 | 19 | 14 | 7 | 2 | 1 | 1 | 1 |
| | BPSK | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−11 | 10−9 | | OSNR [dB | 27 | 24 | 20 | 17 | 15 | 11 | 8 | 5 |
| | DBPSK | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−10 | 10−8 | | OSNR [dB | 27 | 24 | 20 | 17 | 15 | 11 | 8 | 5 |
| | BFSK | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−11 | 10−9 | | OSNR [dB | 28 | 26 | 24 | 21 | 18 | 16 | 13 | 10 |
| | QPSK | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−12 | 10−11 | 10−9 | | OSNR [dB | 27 | 24 | 20 | 17 | 15 | 11 | 8 | 5 |
| | 8PSK | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−10 | 10−6 | 10−3 | 10−2 | | OSNR [dB | 27 | 23 | 19 | 14 | 9 | 6 | 2 | 1 |
| | 16QAM | BER [ | 10−12 | 10−12 | 10−12 | 10−12 | 10−9 | 10−3 | 10−1 | 10−1 | | OSNR [dB | 27 | 22 | 17 | 12 | 7 | 2 | 2 | 1 |
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