Single-Channel 1.28Tbit/s-525km DQPSK Transmission Using Ultrafast Time-Domain Optical Fourier Transformation and Nonlinear Optical Loop Mirror

Pengyu GUAN; Hans Christian Hansen MULVAD; Yutaro TOMIYAMA; Toshiyuki HIRANO; Toshihiko HIROOKA; Masataka NAKAZAWA

doi:10.1587/transcom.E94.B.430

Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era

Single-Channel 1.28Tbit/s-525km DQPSK Transmission Using Ultrafast Time-Domain Optical Fourier Transformation and Nonlinear Optical Loop Mirror

Pengyu GUAN, Hans Christian Hansen MULVAD, Yutaro TOMIYAMA, Toshiyuki HIRANO, Toshihiko HIROOKA, Masataka NAKAZAWA

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Keywords: high-speed optical pulse transmission, optical Fourier transformation, ultrashort optical pulse, optical phase modulation, optical time-division multiplexing, differential quadrature phase shift keying

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2011 Volume E94.B Issue 2 Pages 430-436

DOI https://doi.org/10.1587/transcom.E94.B.430

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Abstract

We demonstrate a single-channel 1.28Tbit/s-525km transmission using OTDM of subpicosecond DQPSK signals. In order to cope with transmission impairments due to time-varying higher-order PMD, which is one of the major limiting factors in such a long-haul ultrahigh-speed transmission, we newly developed an ultrafast time-domain optical Fourier transformation technique in a round-trip configuration. By applying this technique to subpicosecond pulses, transmission impairments were greatly reduced, and BER performance below FEC limit was obtained with increased system margin.

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