Photodetector chip, optical receiving and transceiver components, optical module, and communications device
US12100926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2021 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Jul 27, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/691
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An embodiment of the present invention provides a photodetector chip, including a substrate, a semiconductor optical amplification section, and a photodetection section. The substrate includes a surface, the photodetection section and the semiconductor optical amplification section are arranged on the substrate, and the photodetection section is located in an optical signal output direction of the semiconductor optical amplification section. The semiconductor optical amplification section amplifies and filters an input optical signal to output an amplified and filtered optical signal to the photodetection section. The photodetection section is configured to convert the amplified and filtered optical signal into an electrical signal. The semiconductor optical amplification section includes a grating, the grating includes a first grating and a second grating that are cascaded, and the first grating is a slanted grating. The first grating and the second grating are configured to filter an optical signal entering the semiconductor optical amplification section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.