Semiconductor optical amplification element

Optical waveguides – Planar optical waveguide – Thin film optical waveguide

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372 45, G02B 610

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active

061414778

ABSTRACT:
The invention provides a semiconductor optical amplification element which reduces noise light emission and increases saturation output power. The semiconductor optical amplification element has an optical waveguide which includes a core layer formed from an active layer acting as an optical amplification medium and amplifies and outputs an optical signal without electrically converting. The light reflection factor on an inputting side end of the element for the optical signal is lower than the light reflection factor on another outputting side end of the element.

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