Title :
Dependence of frequency chirping on bias current in LD wavelength conversion
Author_Institution :
NTT LSI Labs., Kanagawa, Japan
fDate :
6/1/1996 12:00:00 AM
Abstract :
Chirping influence is experimentally studied in wavelength conversion using a light injected DFB-LD. It is shown that signal degradation due to frequency chirping is small when the bias current is large and the relaxation oscillation frequency is high. An experiment demonstrates that 5-Gb/s wavelength converted light at 1.55 μm is transmitted through 160-km nondispersion-shifted fiber with 2-dB penalty, which is only 0.5 dB larger than that in transmission using a LiNbO3 Mach-Zehnder modulator.
Keywords :
chirp modulation; distributed feedback lasers; electro-optical modulation; optical frequency conversion; quantum well lasers; 1.55 mum; 160 km; 5 Gbit/s; LD wavelength conversion; LiNbO/sub 3/; LiNbO/sub 3/ Mach-Zehnder modulator; MQW DFB-LD; bias current; chirping influence; frequency chirping; light injected DFB-LD; nondispersion-shifted fiber; relaxation oscillation frequency; signal degradation; wavelength converted light; Chirp modulation; Degradation; Frequency conversion; Optical filters; Optical modulation; Optical receivers; Optical wavelength conversion; Power lasers; Threshold current; Wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
