Title :
All optical wavelength conversion schemes for increased input power dynamic range
Author :
Danielsen, S.L. ; Hansen, P.B. ; Stubkjaer, K.E. ; Schilling, M. ; Wünstel, K. ; Idler, W. ; Doussiere, P. ; Pommerau, F.
Author_Institution :
Center for Broadband Telecommun., Tech. Univ., Lyngby, Denmark
Abstract :
Schemes for increasing the input power dynamic range of interferometric wavelength converters are presented with experiments at 10 Gb/s showing large improvements. A simple conversion scheme that uses current control of the interferometer improves the dynamic range from /spl sim/3-/spl sim/8 dB. A simpler method of inserting an Er-doped fiber amplifier (EDFA) before the converter results in more than 40 dB of dynamic range while a method of using a semiconductor optical amplifier (SOA) for power control gives /spl sim/28-dB dynamic range.
Keywords :
Michelson interferometers; erbium; fibre lasers; optical communication equipment; optical frequency conversion; semiconductor lasers; semiconductor quantum wells; wavelength division multiplexing; 10 Gbit/s; EDFA; Er-doped fiber amplifier; WDM optical fibre networks; all optical wavelength conversion schemes; current control; dynamic range; increased input power dynamic range; interferometric wavelength converters; optical frequency conversion; power control; semiconductor optical amplifier; Arm; Dynamic range; Erbium-doped fiber amplifier; Optical interferometry; Optical wavelength conversion; Power control; Semiconductor optical amplifiers; Switches; Wavelength converters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
