Graded Strain Bulk-Like Polarization-Insensitive Semiconductor Optical Amplifier with Large Bandwidth
渐变应变偏振不灵敏半导体光学放大器

It is the first time in the world that graded tensile strained bulk-like active structure is induced to fabricate semiconductor optical amplifier.Large 3dB bandwidth of more than 35nm and polarization insensitivity of less than 0.35dB are measured when the injection current from 60mA to 160mA.And the corresponding spontaneous emission output power varies from 0.18mW to 3.9mW.