Abstract
We experimentally compare the performance of standard single-mode fiber (SSMF) and UltraWave fiber (UWF) for ultra-long-haul (ULH) 40-Gb/s wavelength- division- multiplexing transmissions. We used the carrier-suppressed return-to-zero amplitude-shift-keying (CSRZ-ASK) and the carrier-suppressed return-to-zero differential-phase-shift-keying (CSRZ-DPSK) formats, which are particularly well-adapted to 40-Gb/s pulse-overlapped propagation. We demonstrate that transmission distance well beyond 2000 km can be reached on UWF with both the CSRZ-ASK and CSRZ-DPSK formats, or on SSMF with the CSRZ-DPSK format only, thus indicating that SSMF-based infrastructure of incumbent carriers can be upgraded at 40-Gb/s channel rates to ULH distances. © 2007 IEEE.
| Original language | English |
|---|---|
| Pages (from-to) | 1613-1615 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 19 |
| Issue number | 20 |
| Early online date | 24 Sept 2007 |
| DOIs | |
| Publication status | Published - 15 Oct 2007 |
Keywords
- modulation formats
- optical communications
- optical fibers
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