Optical semiconductor device, optical subassembly, and optical module

An optical semiconductor device includes a semiconductor substrate; a plurality of mesa stripes, which are arranged side by side on the semiconductor substrate, and each of which includes an active layer and a diffraction grating, the diffraction grating extending up to a back end surface of each of...

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Bibliographic Details
Main Authors Nakai, Yoshihiro, Yamauchi, Shunya, Asakura, Hideaki, Nakamura, Atsushi, Takita, Hayato, Nakanishi, Akira
Format Patent
LanguageEnglish
Published 16.07.2024
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An optical semiconductor device includes a semiconductor substrate; a plurality of mesa stripes, which are arranged side by side on the semiconductor substrate, and each of which includes an active layer and a diffraction grating, the diffraction grating extending up to a back end surface of each of the plurality of mesa stripes; a plurality of electrodes, each of which is electrically connected to an upper surface of a corresponding one of the plurality of mesa stripes, having a pad portion for wire bonding; a plurality of waveguides, each of which is optically connected to the active layer of a corresponding one of the plurality of mesa stripes; and a reflective film provided at back end surfaces of the plurality of mesa stripes, and wherein at least two mesa stripes, of the plurality of mesa stripes, are configured to be driven at the same time.
Bibliography:Application Number: US202016834808