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We report a novel digital coherent receiver based on sampling the signal in the optical domain to overcome the speed limitations of electrical analog-to-digital converters. Digital coherent receivers with aggregate optical sampling rates of up to 112 GHz are realized experimentally. The performance of such receivers is investigated in transmission experiments. Transmission of 56 GBd quadrature phase-shift...
Generation, transmission and coherent detection of a 640-GBd RZ-16-QAM, polarization-multiplexed OTDM signal is demonstrated. Considering 7% hard decision FEC overhead, error-free transmission of 4.8 Tb/s is achieved over 80 km dispersion-managed fiber.
We propose a coherent receiver scheme exploiting optical sampling to overcome the speed limitations of electronic analog-to-digital converters. Transmission of 56GBd quadrature phase-shift keying signals over 610km standard single-mode fiber and coherent detection with electronic impairment mitigation is demonstrated.
In this paper, we review emerging technologies to build up Tb/s per channel transmission capacity. The different approaches, mainly based on various implementations of orthogonal frequency division multiplexing, Nyquist wavelength division multiplexing and optical time division multiplexing, are introduced and compared with respect to complexity, spectral efficiency and transmission reach. In addition...
The system performance of an InP-based electrical demultiplexer within an optically pre-amplified 107 Gb/s OOK receiver is investigated. Error-free performance was achieved in back-to-back configuration.
We present a 53.5 GHz monolithic pulse source, applied as transmitter in a single-channel, 107 Gb/s RZ-DQPSK system with 100 GHz filtering. Error-free transmission over 480 km was demonstrated.
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