Patent
Coherent optical orthogonal frequency division multiplexing (OFDM) reception using self optical carrier extraction
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TLDR
In this paper, the received optical OFDM signal is split into a first part that is filtered to extract the carrier from the received OOD signal and a second part similar to the received ORDM signal.Abstract:
A method includes producing interference between a received optical OFDM signal and an optical carrier extracted from the received optical OFDM signal to provide optical coherent detection of the received optical OFDM signal. Preferably, producing the interference includes optically splitting the received optical OFDM signal into a first part that is filtered to extract the carrier from the received optical OFDM signal and a second part similar to the received optical OFDM signal.read more
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References
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Patent
Methods and apparatus for optical transmission of digital signals
Arthur J. Lowery,Jean Armstrong +1 more
TL;DR: In this article, a system for transmitting digital information includes a transmitting apparatus (100) for generating an optical signal bearing digital information, a dispersive optical channel (104), and a receiving apparatus (110) for receiving the optical signal.
Proceedings ArticleDOI
PMD Insensitive Direct-Detection Optical OFDM Systems Using Self-Polarization Diversity
TL;DR: In this paper, a self-polarization diversity without dynamic polarization control is proposed to compensate PMD in direct-detection optical OFDM systems, and it is shown that PMD impairments are virtually completely eliminated in the optical OFD system using this technique.
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Frequency estimation in an intradyne optical receiver
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