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Current 100-Gbit/s full-electrical time division multiplex (ETDM) transmission technologies are examined. The focus is on the electrical and electro-optical components, the state-of-the-art and the still existing bottle necks, mainly regarding the formats on-off keying (OOK) and differential quadature-phase shift keying (DQPSK). But also a comparative look on a promising rival solution with non-full ETDM will be included, namely polarization-multiplexed QPSK with coherent detection (PQPSKC).
Date of Conference: 14-17 Oct. 2007