6 THz Range Frequency Conversion of 2.5 Gbit/s Signals by a 1.55 /spl mu/m MQW Based Widely Tunable Y-Laser

Abstract

For the interferometric Y-laser we report on extended electrical cw tuning per formance of 51 nm, low dc threshold currents of 8 mA per segment, and up to 6 THz tunable frequency conversion of 2-5 Gb/s data. Moreover, a new simplified current control scheme allowing for improved tuning response is proposed and verified with first samples.