Bit-rate flexible picosecond pulse width conversion with all-optical mono-stable multivibrator laser diode

An optical mono-stable multivibrator laser diode (MM-LD) is realized by usi ng a multi-electrode distributed feedback laser diode. All-optical pulse-wi dth conversion of ultra-short pulses to non-return-to-zero (NRZ) is achieve d using an MM-LD. The MM-LD is adopted for a wide range of bit-rates betwee n 2-10 Gbit/s by tuning the DC bias. Data format transformation from 10-Gbi t/s return-to-zero optical signals to NRZ optical-signals is achieved with error free operation. Converted optical signals, which have a narrower spec tral bandwidth and lower peak power than when input, are transmitted using a 1.3-mu m zero dispersion fiber (1.3 lambda(0)-SMF).