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US07126749B2 Semiconductor optical amplifier with low polarization gain dependency 有权
具有低偏振增益依赖性的半导体光放大器

Semiconductor optical amplifier with low polarization gain dependency
Abstract:
A semiconductor optical amplifier (SOA) has an overall gain that is substantially polarization independent, i.e., less than 1 dB difference between transverse electric (TE) and transverse magnetic (TM) gain. The SOA includes gain and polarization rotation functions integrated onto a single substrate. According to one exemplary embodiment, a passive polarization rotation section is disposed between two active gain sections.
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