Maximun bps rate on an ITU channel over standard single mode fiber

AI Thread Summary
The maximum bit rate (bps) achievable over a 40 km long standard single-mode fiber using an ITU normalized channel with a 100 GHz optical bandwidth can vary significantly based on the chosen modulation formats. Advanced modulation techniques, such as QAM (Quadrature Amplitude Modulation), can increase capacity, while optical multiplexing can further enhance throughput. The use of electric modulation also plays a crucial role in optimizing performance. Factors like signal-to-noise ratio and dispersion must be considered to maximize efficiency. Overall, leveraging both electric and optical multiplexing alongside advanced modulation techniques is key to achieving higher data rates.
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I have to find the maximun bps that it can be reach using a point-to-point link of 40 km long of optic fiber. I use an ITU normalized channel (100 GHz optic BW).

So, I can choose any electric modulation and any optic modulation, too.

Anybody could help me? Any answer is welcome. Thanks.
 
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And I can use electric and optic multiplex, too.
 
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