Information capacity of direct detection optical transmission systems

Abstract

We show that the spectral efficiency of a direct detection transmission system is at most 1 bit/s/Hz less than the spectral efficiency of a system employing coherent detection with the same modulation format. Correspondingly, the capacity per complex degree of freedom in systems using direct detection is lower by at most 1 bit.

References in corpus (2)

• Solving Systems of Random Quadratic Equations via Truncated Amplitude Flow
• Iterative Symbol Recovery For Power Efficient DC Biased Optical OFDM Systems

Cited by in corpus (6)

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• Information Rates for Channels with Fading, Side Information and Adaptive Codewords
• Achievable Rates for Short-Reach Fiber-Optic Channels with Direct Detection
• Direct Detection Under Tukey Signalling
• Scaling Laws for Unamplified Coherent Transmission in Next-generation Short-Reach and Access Networks
• On the Capacity of Waveform Channels Under Square-Law Detection of Time-Limited Signals