Novel optical orthogonally modulation scheme for superimposing DPSK signals on dark RZ signals

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Optical differential quadrature phase-shift key (oDQPSK) for high capacity optical transmission

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Quaternary optical ASK-DPSK and receivers with direct detection

Michael Ohm, Joachim Speidel · IEEE Photonics Technology Letters · 2003 · 96 citations

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Comparison of Modulation Formats for 42.7-Gb/s Single-Channel Transmission Through 1980 km of SSMF

A.H. Gnauck, X. Liu, Xing Wei et al. · IEEE Photonics Technology Letters · 2004 · 59 citations

Engineering, Communication, Electrical Engineering +16