Multi-channel wavelength conversion using four-wave mixing in semiconductor ring lasers
- Pérez-Serrano, Antonio
- Javaloyes, Julien
- Balle, Salvador
2010 Mathematics Subject Classification
- 78A60 65P99
2008 Physics and Astronomy Classification Scheme
- 42.55.Px 42.65.Hw 42.65.St
- Semiconductor lasers, Semiconductor ring lasers (SRLs), Four-wave mixing (FWM), All-optical wavelength conversion, Travelling wave model (TWM)
We theoretically study all-optical simultaneous wavelength conversion of multiple channels by four-wave mixing in semiconductor ring lasers. Locking the semiconductor ring laser to a holding beam allows to achieve large conversion efficiencies with good signal-tonoise ratio in several channels at multi-Gb/s bit rates. Cross-talk between signals, arising from the peculiar four-wave mixing cascade of modes in semiconductor ring lasers and their cross-gain saturation, is studied in detail. We show that it can be controlled by adjusting the intensity of the holding beam, the bias current of the laser and the number, intensity and wavelength of signals that one wants to convert.
- IEEE Phot. Tech. Letter, 25 (2013) pp. 476--479.