Abstract
We demonstrate the longest bidirectional and unrepeatered semiconductor optical amplifier (SOA)-based transmission of 16 differential phase-shift keying (DPSK), 100-GHz-spaced channels at 10 Gb/s over standard single-mode fiber. Key techniques are: the use of DPSK constant-envelope modulation format to prevent nonlinear distortions in the SOAs; a new type of wavelength-division-multiplexing-DSPK demodulator to strongly enhance the signal tolerance to chromatic dispersion. After 120-km transmission, 1.8- to 3-dB power penalty was found for the 16 channels.
Original language | English |
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Pages (from-to) | 1762-1764 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 18 |
Issue number | 16 |
DOIs | |
Publication status | Published - 15 Aug 2006 |
Externally published | Yes |
Keywords
- Optical communications
- Optical differential phase-shift keying (DPSK)
- Semiconductor optical amplifiers (SOAs)
- Wavelength-division-multiplexing (WDM) systems