NRZ Transmission Range Record at 40-Gb/s in Standard Fiber Using a Dual Electro-absorption Modulated Laser

We demonstrate the scalability of Dual Electro-absorption Modulated Laser to higher speed and distances. The transmission reach of 40-Gb/s NRZ signal in standard fiber has been extended to 31 a record value of 12-km with 2 -1 PRBS. Introduction The present deployment of FTTH (Fiber to the Home) leads to a worldwide development of PON (Passive Optical Network) technology. Networks designers are focusing on the future full usage of the infrastructure so as to avoid bottlenecks following any demand increase. Together with the introduction of WDM (Wavelength Division Multiplexing) aspect, a single wavelength channel bit-rate enhancement can participate to cost and footprint reduction of access architectures provided high-speed, cost and consumption friendly optical transmitters and receivers are available. In this paper we demonstrate experimentally and by simulations that the low-cost Dual Electro-absorption Modulated Laser (D-EML ) can be used at a bit rate up to 40 Gb/s in un-amplified, uncompensated transmissions reaching 12 km standard single mode fiber. In fact, D-EML transmitter based on an integrated Electroabsorption Modulated Laser (EML) with a dual access for modulation has proven some very promising performances at 10 Gb/s [1,2] and even 20Gb/s [3] by reaching 180 km and 39.7 km dispersion limited transmission range respectively. A key feature of D-EML is its ability to adjust independently the laser and modulator chirp by controlling the amplitude modulation of each of the two integrated components in order to extend the reach.