Abstract
This paper reports a detailed theoretical study of the dynamics of wavelength conversion using cross-gain and cross-phase modulation in semiconductor optical amplifiers (SOA's) involving a large signal, multisection rate equation model. Using this model, recently reported experimental results have been correctly predicted and the effects of electrical and optical pumping on the conversion speed, modulation index, and phase variation of the converted signal have been considered. The model predicts, in agreement with experimental data, that recovery rates as low as 12 ps are possible if signal and pump powers in excess of 14 dBm are used. It also indicates that conversion speeds up to 40 Gb/s may be achieved with less than 3 dB dynamic penalty. The employment of cross-phase modulation increases the speed allowing, for example, an improvement to 60 Gb/s with an excess loss penalty less than 1 dB.
| Original language | English |
|---|---|
| Pages (from-to) | 1181-1190 |
| Number of pages | 10 |
| Journal | Journal of Lightwave Technology |
| Volume | 15 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 1997 |
Funding
Manuscript received August 21, 1996; revised March 27, 1997. This work was supprted by the U.K. Engineering and Physical Sciences Research Council (EPSRC). The authors are with the Department of Electrical and Electronic Engineering, University of Bristol, Merchant Venturers Building, University of Bristol, Bristol BS8 1UB UK. Publisher Item Identifier S 0733-8724(97)05157-8.
Keywords
- Integrated optics
- Optical wavelength routing
- Optical wavelength switching
- Optoelectronics
- Semiconductor laser amplifiers
- Wavelength conversion
- Wavelength translation
- WDM systems
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics