Abstract
We demonstrate a single-channel 1.28 Tbit/s-525 km transmission using OTDM of subpicosecond DQPSK signals. In order to cope with transmission impairments due to time-varying higherorder PMD, which is one of the major limiting factors in such a longhaul ultrahigh-speed transmission, we newly developed an ultrafast timedomain optical Fourier transformation technique in a round-trip configuration. By applying this technique to subpicosecond pulses, transmission impairments were greatly reduced, and BER performance below FEC limit was obtained with increased system margin.
| Original language | English |
|---|---|
| Pages (from-to) | 430-436 |
| Number of pages | 7 |
| Journal | IEICE Transactions on Communications |
| Volume | E94-B |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Feb 2011 |
| Externally published | Yes |
Keywords
- Differential quadrature phase shift keying
- High-speed optical pulse transmission
- Optical Fourier transformation
- Optical phase modulation
- Optical timedivision multiplexing
- Ultrashort optical pulse