Abstract
This paper describes application areas, elemental technologies, and the feasibility of terrestrial terabit wavelength division multiplexing (WDM) transmission systems based on super-dense wavelength division multiplexing (DWDM) technologies with a channel spacing of 12.5 GHz. Numerical simulation results quantitatively show that the merit of super-DWDM transmission is the elimination of the need for dispersion compensation over the several hundreds of kilometers of standard single-mode fiber (SMF). To support super-DWDM transmission, the prototype of a multiwavelength generator, which consists of just an intensity modulator and a phase modulator, is developed as a small-size WDM light source with high-wavelength stability. We use this prototype to conduct a 1.28-Tb/s (512 channels × 2.5 Gb/s) transmission experiment with a channel spacing of 12.5 GHz over 320 km (80 km × 4 span) of standard SMF without dispersion compensation. The potential and the feasibility of super-DWDM transmission with a channel spacing of 12.5 GHz for terrestrial systems is confirmed by the numerical simulation and the transmission experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 1998-2005 |
| Number of pages | 8 |
| Journal | Journal of Lightwave Technology |
| Volume | 24 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2006 May |
| Externally published | Yes |
Keywords
- Chromatic dispersion
- Multi-wavelength generation
- Optical communication
- WDM
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics