Abstract
Abstract
We discuss high spectral efficient long-haul transmission using multilevel modulation formats. In particular, we investigate long-haul transmission with a 1.6-b/s/Hz spectral efficiency using polarization-multiplexed return-to-zero differential quadrature phase-shift keying. In an experimental demonstration, we show 40 times 85.6-Gb/s transmission with a 50-GHz channel spacing over 1700 km (18 times 94.5 km) of standard-single-mode fiber
| Original language | English |
|---|---|
| Pages (from-to) | 222-232 |
| Number of pages | 11 |
| Journal | Journal of Lightwave Technology |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 |
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