Non-inverted multiple wavelength converter at 40 Gbit/s using 1550 nm quantum dot SOA
- 31 July 2008
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 44 (16) , 988-989
- https://doi.org/10.1049/el:20081303
Abstract
Error-free and low penalty (<2.5 dB) 1×4 multiwavelength conversion at 40 Gbit/s in a 1550 nm quantum dot semiconductor optical amplifier (QD-SOA) is demonstrated. The suggested converter makes use of a simplified filtering scheme based on a standard telecom grade dense wavelength division multiplexing demultiplexer (Demux). By detuning the wavelength of the continuous-wave probes out of the Demux's passband, a non-inverted wavelength converted signal is available at each of the Demux's outputs. Albeit significant fibre-to-fibre losses of the non-packaged QD-SOA (∼10 dB), only a low penalty is reported, mainly due to the low noise at the amplifier's output, with similar performance for a single and multiple wavelength conversion operation of the setup.Keywords
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