The 1861 directly-modulated laser (DML) is a cost-effective solution for 10 Gb/s digital transmission of up to 60 km using traditional intra-city SMF-28Ô single-mode fiber links. The 1310 nm wavelength eliminates the concern about dispersion control over most installed intra-city fiber plants. The package contains a high-speed DFB laser chip, thermoelectric cooler, thermistor, optical isolator, and a rear-facet monitor photodiode for external optical power control.
Description The 1861 directly-modulated laser (DML) is a cost-effective solution for 10 Gb/s digital transmission of up to 60 km using traditional intra-city SMF-28Ô single-mode fiber links. The 1310 nm wavelength eliminates the concern about dispersion control over most installed intra-city fiber plants. The package contains a high-speed DFB laser chip, thermoelectric cooler, thermistor, optical isolator, and a rear-facet monitor photodiode for external optical power control.
Features
Internal TEC for stable performance over wide case range of –5 to 80 °C
High relaxation frequency at low bias
Hermetically sealed optics, isolator on TEC
Lower cost than EML
Wide range of powers and distances
Application
VSR, SR, IR and LR applications
SONET and 10 Gb/s Ethernet transponders and line cards
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