Title :
Experimental investigation of the cascadability of a cross-gain modulation wavelength converter
Author :
Zheng, Xueyan ; Liu, Fenghai ; Kloch, Allan
Author_Institution :
Res. Center COM, Tech. Univ. Denmark, Lyngby, Denmark
fDate :
3/1/2000 12:00:00 AM
Abstract :
The cascading characteristics of a wavelength converter based on cross-gain modulation (XGM) are studied experimentally using a recirculating loop at 10 Gb/s. The maximum cascaded number of the wavelength converter converting the signal to the same wavelength is improved from five to eight by adding a fiber grating-based optical add-drop multiplexer after the semiconductor optical amplifier (SOA) to enhance the high-frequency response of the wavelength converter. However, the low-frequency degradation of the signal together with amplified spontaneous emission (ASE) noise and jitter accumulation finally limits the wavelength converter to be cascaded for more times.
Keywords :
diffraction gratings; electro-optical modulation; jitter; optical communication equipment; optical fibre communication; optical frequency conversion; semiconductor optical amplifiers; superradiance; wavelength division multiplexing; 10 Gbit/s; amplified spontaneous emission noise; cascadability; cascading characteristics; cross-gain modulation wavelength converter; fiber grating-based optical add-drop multiplexer; high-frequency response; jitter accumulation; low-frequency degradation; maximum cascaded number; recirculating loop; semiconductor optical amplifier; wavelength converter; Degradation; Fiber gratings; Optical add-drop multiplexers; Optical fibers; Optical modulation; Optical noise; Optical wavelength conversion; Semiconductor optical amplifiers; Stimulated emission; Wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
