Surface-emitting laser apparatus and method for manufacturing the same

The surface-emitting laser device with a distributed Bragg reflective layer and oxidation region addresses the challenge of achieving single transverse mode output by enhancing reflectance and reliability, reducing manufacturing complexity and cost.

JP2026105803APending Publication Date: 2026-06-26HON HAI PRECISION INDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
HON HAI PRECISION INDUSTRY CO LTD
Filing Date
2025-06-02
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Current surface-emitting lasers face challenges in achieving single transverse mode output with precise control of oxidation aperture diameter and low reproducibility, which affects cost, yield, and reliability.

Method used

A surface-emitting laser device with a distributed Bragg reflective layer structure that includes an oxide layer with an opening and a recess, where the upper part of the layer is oxidized to create an oxidation region with higher reflectance, allowing single transverse mode output without precise aperture control.

Benefits of technology

The device achieves single transverse mode output with low cost and high yield, and high reliability due to a stable oxidation region structure that does not require precise aperture control, improving manufacturing efficiency.

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Abstract

The present invention provides a surface-emitting laser device that achieves single transverse mode output at low cost, high yield, and high reliability. [Solution] A surface-emitting laser apparatus comprising a first-type distributed Bragg reflective layer, an active layer, a second-type distributed Bragg reflective layer, and an oxide layer. The active layer is disposed on the first-type distributed Bragg reflective layer, and the second-type distributed Bragg reflective layer is disposed on the active layer. The oxide layer is disposed on one side of the second-type distributed Bragg reflective layer closest to the active layer, and the oxide layer has an opening through which light emitted from the active layer passes. The upper part of a local region of the second-type distributed Bragg reflective layer has at least one recess and an oxidation region, the recess communicates with the oxidation region, and the oxidation region is located above the opening. A method for manufacturing the surface-emitting laser apparatus is also provided.
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