OPTICAL DEVICE WITH MULTISECTION SOA FOR ACHIEVING WIDE OPTICAL BANDWIDTH AND LARGE OUTPUT POWER

摘要

An optical device (10) comprises a first semiconductor optical amplifier (1) comprising an active region (3) embedded into a waveguide (2) and comprising a first section (3₁) intended for amplifying optical signals when it is crossed by a first current smaller than a chosen value inducing amplification over a large optical bandwidth, and a second section (3₂) intended for amplifying the optical signals amplified by the first section (3₁) when it is crossed by a second current greater than this chosen value, to deliver output optical signals with a large power.