Link performances at 25 Gbit/s for a packaged, InGaAsP-based, monolithically integrated Mach-Zehnder modulator and DFB laser, and a co-packaged discrete Mach-Zehnder modulator and DFB laser, are reported. Both modulators feature a switching voltage of ~2V, and an on-chip absorber for optical power adjustment of up to 15 dB. Negative dispersion penalties at 1.55 μm for >1000 km of nondispersion shifted fibre (NDSF) are achieved with both modules
Published in:
Electronics Letters
(Volume:34
,
Issue:
8
)
Date of Publication: 16 Apr 1998