Benjamin J. Puttnam

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We review work on self-homodyne detection (SHD) for optical communication systems. SHD uses a transmitted pilot-tone (PT), originating from the transmitter laser, to exploit phase noise cancellation at a coherent receiver and to enable transmitter linewidth tolerance and potential energy savings. We give an overview of SHD performance, outlining the key(More)
We discuss digital signal processing (DSP) techniques for self-homodyne detection (SHD), multi-core fiber (MCF) transmission links, and related technologies. We focus on exploiting the reduced phase noise of self-homodyne multi-core fiber (SH-MCF) systems to enable DSP resource savings and describe digital receiver architectures that mixes signal and local(More)
—Analytical models for all-optical phase-sensitive BPSK and QPSK regeneration are presented, metrics for phase and intensity regeneration efficiency are derived. The models are based on the general principle of operation and do not depend on the regenerator's physical structure. They offer the possibility of simple network planning and comparison of(More)
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