High speed 1.3 μm AlGaInAs DFB-LD with λ/4-shift grating

摘要

1.3 μm AlGaInAs DFB-LD with λ/4-shift grating has beendeveloped for the first time. The light output power over 5 mW at85° C has been obtained for the DFB-LD. Relaxation oscillationfrequency (fr) as high as 11.2 GHz@5 mW at a negative detuning of -10 nmhas been attained. Clearly opened eye diagram at 10 Gbps modulation hasbeen also confirmed at 75° C, which demonstrate excellenttransmission characteristics. Stable operation over 1700 hours at 10mW@85° C in the preliminary life test has been confirmed