Polarization independent semiconductor optical amplifier

摘要

Semiconductor optical amplifier with polarization independent gain. A polarization adjusting layer is formed on a semiconductor optical amplifier. The semiconductor optical amplifier has an active region that includes both compressively strained and tensile strained quantum wells. The polarization adjusting layer is formed and then etched to a thickness that repositions an optical signal within the active region such that the gain of the optical signal is independent of the polarization of the optical signal.