US Patent Application 18043018. OPTICAL SEMICONDUCTOR DEVICE simplified abstract
Contents
OPTICAL SEMICONDUCTOR DEVICE
Organization Name
Mitsubishi Electric Corporation
Inventor(s)
OPTICAL SEMICONDUCTOR DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18043018 titled 'OPTICAL SEMICONDUCTOR DEVICE
Simplified Explanation
The patent application describes an optical semiconductor device that includes a semiconductor substrate, a semiconductor laser, an optical multiplexer/demultiplexer circuit, a first waveguide portion, and a second waveguide portion.
- The device is designed to multiplex or demultiplex the output light of the semiconductor laser.
- The second output light is outputted from an end face of the semiconductor substrate.
- The third output light is amplified by an optical amplifier in the second waveguide portion.
- The reflecting portion in the second waveguide portion includes a diffraction grating that reflects the amplified third output light back to the semiconductor laser.
- The semiconductor laser and the reflecting portion form a resonator.
Original Abstract Submitted
An optical semiconductor device according to the present disclosure includes a semiconductor substrate, at least one semiconductor laser provided on the semiconductor substrate, an optical multiplexer/demultiplexer circuit provided on the semiconductor substrate, multiplexing or demultiplexing first output light of the semiconductor laser and outputting second output light and third output light, a first waveguide portion provided on the semiconductor substrate, and outputting the second output light from an end face of the semiconductor substrate, and a second waveguide portion including an optical amplifier amplifying the third output light and a reflecting portion and provided on the semiconductor substrate, wherein the reflecting portion includes a diffraction grating that reflects the third output light amplified by the optical amplifier to feed back to the semiconductor laser via the optical amplifier and the optical multiplexer/demultiplexer circuit, and the semiconductor laser and the reflecting portion form a resonator.
