EAM-integrated DFB laser modules with more than 40-GHz bandwidth

Electroabsorption modulator (EAM)-distributed feedback (DFB) modules with record-high bandwidth of 41 GHz have been developed. 40-Gb/s nonreturn to zero (NRZ) operation with 12-dB extinction ratio and -1.6-dBm average output power have been successfully achieved by optimizing the EAM length and detu...

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Veröffentlicht in:	IEEE photonics technology letters 2001-09, Vol.13 (9), p.954-956
Hauptverfasser:	Kawanishi, H., Yamauchi, Y., Mineo, N., Shibuya, Y., Mural, H., Yamada, K., Wada, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bandwidth Dispersions Distributed power generation Extinction ratio Laser feedback Lasers Modulation Modules Optical signal processing Optimization Output feedback Power generation Pulse modulation Short pulses Signal analysis Space vector pulse width modulation Trains
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Beschreibung
Zusammenfassung:	Electroabsorption modulator (EAM)-distributed feedback (DFB) modules with record-high bandwidth of 41 GHz have been developed. 40-Gb/s nonreturn to zero (NRZ) operation with 12-dB extinction ratio and -1.6-dBm average output power have been successfully achieved by optimizing the EAM length and detuning. A clearly opened eye diagram was maintained even after 80-km nonzero dispersion shifted fiber (NZ-DSF) transmission with dispersion compensation, 40-GHz short pulse trains with 6-ps pulsewidth have been also generated by sinusoidal electrical modulation.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/68.942658