SEMICONDUCTOR LIGHT-RECEIVING DEVICE

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SEMICONDUCTOR LIGHT-RECEIVING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240282871 titled 'SEMICONDUCTOR LIGHT-RECEIVING DEVICE

The semiconductor light-receiving device described in the abstract consists of an input optical waveguide, a tapering optical waveguide, and a light detection unit. The input optical waveguide includes a first core and a first cladding layer, while the tapering optical waveguide includes a second core and a second cladding layer. The light detection unit comprises a light-absorbing layer, a first III-V compound semiconductor layer of a first conductivity type, and a second III-V compound semiconductor layer of the first conductivity type. The second III-V compound semiconductor layer has a higher dopant concentration than the first III-V compound semiconductor layer. The second core has a greater thickness than the light-absorbing layer.

The semiconductor light-receiving device includes an input optical waveguide, a tapering optical waveguide, and a light detection unit.
The input optical waveguide consists of a first core and a first cladding layer, while the tapering optical waveguide comprises a second core and a second cladding layer.
The light detection unit is made up of a light-absorbing layer, a first III-V compound semiconductor layer of a first conductivity type, and a second III-V compound semiconductor layer of the first conductivity type.
The second III-V compound semiconductor layer has a higher dopant concentration compared to the first III-V compound semiconductor layer.
The second core has a greater thickness than the light-absorbing layer.

Potential Applications: - Optical communication systems - Photodetectors - Optical sensors

Problems Solved: - Enhanced light detection efficiency - Improved signal-to-noise ratio - Increased sensitivity to light signals

Benefits: - Higher performance in light-receiving applications - Greater accuracy in detecting light signals - Potential for miniaturization and integration into various devices

Commercial Applications: Title: Advanced Light-Receiving Technology for Optical Communication Systems This technology can be utilized in telecommunications, data transmission, and optical sensing industries. The improved light detection capabilities can lead to more reliable and efficient systems, enhancing overall performance and accuracy in various commercial applications.

Questions about the technology: 1. How does the higher dopant concentration in the second III-V compound semiconductor layer contribute to the device's performance? 2. What are the specific advantages of using a tapering optical waveguide in this semiconductor light-receiving device?

Original Abstract Submitted

the semiconductor light-receiving device includes an input optical waveguide, a tapering optical waveguide, and a light detection unit. the input optical waveguide includes a first core and a first cladding layer, the tapering optical waveguide includes a second core and a second cladding layer. the light detection unit includes a light-absorbing layer, a first iii-v compound semiconductor layer of a first conductivity type, and a second iii-v compound semiconductor layer of the first conductivity type. the second iii-v compound semiconductor layer has a dopant concentration higher than a dopant concentration of the first iii-v compound semiconductor layer. the second core has a first thickness. the light-absorbing layer has a second thickness. the second thickness is smaller than the first thickness.