Performance improvements in XGM‐based wavelength converters with converted signal feedback

A large-signal theoretical model is presented for wavelength conversion using cross-gain modulation (XGM) in semiconductor optical amplifiers with converted signal feedback. Theoretical results on the performance of the converter, in terms of extinction ratio, frequency chirping, and conversion speed, are discussed and analyzed. The converter performance can be enhanced and restrictions of the low-facet reflectivity can be relaxed due to the enhancement of the carrier-photon interaction.

[1]  P.J.A. Thijs,et al.  High-gain, high-power 1550-nm polarization independent MQW optical amplifier , 1996, IEEE Photonics Technology Letters.

[2]  Richard V. Penty,et al.  Wavelength conversion using semiconductor optical amplifiers , 1997 .

[3]  Bernard Glance,et al.  Fibre transmission of 10 Gbit/s signals following wavelength conversion using a travelling-wave semiconductor optical amplifier , 1994 .

[4]  Michael J. Adams,et al.  Analysis of semiconductor laser optical amplifiers , 1985 .

[5]  Raman Kashyap,et al.  Error free 100 Gbit/s wavelength conversion using grating assisted cross-gain modulation in 2 mm long semiconductor amplifier , 1998 .

[6]  S. Yoo.  Wavelength conversion technologies for WDM network applications , 1996 .

[7]  Ian H. White,et al.  Harmonic and phase distortion of analogue amplitude-modulated signals in bulk near travelling-wave semiconductor optical amplifiers , 1992 .

[8]  Roberto Sabella,et al.  Optical Transport Networks Employing All-Optical Wavelength Conversion: Limits and Features , 1996, IEEE J. Sel. Areas Commun..

[9]  S. L. Danielsen,et al.  All-optical wavelength conversion by semiconductor optical amplifiers , 1996 .

[10]  Jichai Jeong,et al.  Theoretical study of frequency chirping and extinction ratio of wavelength-converted optical signals by XGM and XPM using SOA's , 1999 .

[11]  William Shieh,et al.  Optimal spectral and power parameters for all-optical wavelength shifting: single stage, fanout, and cascadability , 1995 .