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Sony patents laser chip design that resists stress

Sony describes a semiconductor laser component designed to keep light emission stable even when physical stress is applied to the chip. The design uses a specific curved mirror shape inside the laser structure to help maintain consistent performance under pressure.

Why it mattersThis is a technical improvement for laser components that may be used in sensors or data centers, ensuring they work reliably in devices that experience physical vibration or heat.

In the filing’s own words

Provided is a technique advantageous for stably emitting a desired laser light from a light-emitting unit of a semiconductor light-emitting element even when stress acts on the light-emitting unit. A semiconductor light-emitting element includes a light-emitting unit including a first distributed Bragg reflector and a second distributed Bragg reflector, and a semiconductor layer and an active layer located between the first distributed Bragg reflector and the second distributed Bragg reflector, and generates laser light, and a stress application unit that applies stress to the light-emitting unit, in which the first distributed Bragg reflector has a laser passing portion through which the laser light emitted from the light-emitting unit passes, and the second distributed Bragg reflector includes a concave reflection portion having a concave shape as viewed from the first distributed Bragg reflector.

What exactly they claim (claim 1)

1. A semiconductor light-emitting element comprising: a light-emitting unit including a first distributed Bragg reflector and a second distributed Bragg reflector, and a semiconductor layer and an active layer located between the first distributed Bragg reflector and the second distributed Bragg reflector, and generates laser light; and a stress application unit that applies stress to the light-emitting unit, wherein the second distributed Bragg reflector includes a concave reflection portion having a concave shape as viewed from the first distributed Bragg reflector.

Facts

Company
Sony (SONY GROUP CORPORATION)
Official title
SEMICONDUCTOR LIGHT-EMITTING ELEMENT
Publication number
US20260291178A1
Application number
19475821
Filed
Apr 4, 2024
Published
Sep 24, 2026
Inventors
3
Claims
18

Classified under

H01S 5/0612 Electricity & electronicsH01S 5/068 Electricity & electronicsH01S 5/18361 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.