40 km REACH DIRECTLY MODULATED 10 Gbit/s DWDM LASER BASED ON EXTERNAL CAVITY LASER (ECL) TECHNOLOGY

摘要

We have demonstrated a FBG based ECL for 40 km reach under direct modulation 10 GBit/s. The laser was packaged with a TEC in a 14-pin butterfly package with a V connector for the laser modulation signal. At 50 mA of bias current the average output power of the laser was on the order of 2 dBm and under modulation at 6dB extinction ration the laser demonstrated 10 to 17 GHz wavelength chirp and 3.8 dB power penalty for a 40 km SMF-28? optical fiber link with no dispersion compensation. The next step in the development of FBG based ECL will be to achieve a full SDH/SONET compliant transmitter for DWDM packaged in a "14+5" pin butterfly MSA package integrated with driver.