Abstract
We demonstrate all-optical conversion between two different data formats: return-to-zero (RZ) and nonreturn-to-zero (NRZ) using a Mach-Zehnder interferometric wavelength converter. For RZ-to-NRZ conversion, a duplication scheme is demonstrated to reduce the ripples caused by the carrier recovery of the semiconductor optical amplifier. The relationship between the ripple-to-signal ratio and the number of pulse duplications is numerically analyzed. For the NRZ-to-RZ conversion, the wavelength converter also shows high performance. The converted RZ signal has a negative power penalty to the NRZ signal due to the change of the data format.
Original language | English |
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Pages (from-to) | 308-310 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 15 |
Issue number | 2 |
Early online date | 29 Jan 2003 |
DOIs | |
Publication status | Published - Feb 2003 |
Keywords
- Mach-Zehnder interferometers
- optical pulse compression
- optical fibre networks
- optical wavelength conversion
- optical amplifiers
- semiconductors