Abstract

Monolithic active/passive mode-locked DBR laser for 4/spl times/10 Gb/s optical time division multiplexing (OTDM) application at 1.55 /spl mu/m are realized by low-cost 2"-technology. The devices show excellent performance at STM-64 frequency: they deliver nearly time-bandwidth limited (<0.4) and wavelength tunable (4.3-nm range) optical return-to-zero (RZ) pulses of down to 8-ps pulsewidth.

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