Northlight intros 10-Gig transmitter

Fiber Optics Weekly Update, March 21, 2003

Northlight Optronics has released a high output, 10Gbps laser transmitter with a transmitting capability of up to 80km aimed at SDH/SONET, DWDM and 1OGbE applications. Northlight's PGT20456 DFB/EA laser module combines a continuous wave DFB laser with an electro-absorption modulator in a single chip.

It is designed to transmit optical signals in both long haul and metro applications in single channel or dense wavelength division multiplexing (DWDM) optical networking equipment. With its integrated modulator, the laser provides a cost-effective onboard solution. It is aimed at both OEMs producing optical networking systems, and manufacturers who build subsystems such as transponders. The standard node/link distance in existing 2.5Gbps systems is 80km. Using the PGT20456 it is possible to replace four 2.5Gbps lasers with one laser, without changing the distance between the nodes. This provides the option to reduce the number of lasers (increasing reliability), and/or increase the transmission capacity in the sy stems.