Title :
Wavelength chirping in wavelength conversion of 10 Gb/s signal with semiconductor laser converter
Author :
Sanjoh, H. ; Mawatari, H. ; Ishii, H. ; Yasaka, H. ; Yoshikuni, Y. ; Oe, K.
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
Abstract :
The chirping effects of wavelength converted 10 Gb/s signals in semiconductor wavelength converter on the waveform degradation after optical fiber transmission are investigated. The 10 Gb/s converted signal can be transmitted over 100 km with less than 2 dB power penalty in the converted wavelength region of 1.524 to 1.564 μm when a broadly tunable SSG-DBR laser wavelength converter and a dispersion shifted fiber are used. It is also discussed how waveform degradation can be reduced when linewidth enhancement factor (/spl alpha/-parameter) of semiconductor laser wavelength converter is reduced by using modulation-doped strained MQW DFB lasers.
Keywords :
chirp modulation; distributed feedback lasers; laser tuning; optical communication equipment; optical frequency conversion; optical modulation; quantum well lasers; wavelength division multiplexing; 1.524 to 1.564 mum; 10 Gbit/s; 100 km; broadly tunable SSG-DBR laser wavelength converter; chirping effects; converted wavelength region; dispersion shifted fiber; linewidth enhancement factor; modulation-doped strained MQW DFB lasers; optical fiber transmission; power penalty; semiconductor laser converter; semiconductor laser wavelength converter; semiconductor wavelength converter; waveform degradation; wavelength chirping; wavelength conversion; Chirp; Degradation; Fiber lasers; Optical fibers; Optical wavelength conversion; Power lasers; Semiconductor lasers; Tunable circuits and devices; Wavelength conversion; Wavelength converters;
Journal_Title :
Photonics Technology Letters, IEEE
