Impact of non-injection window on front facet temperature in laser diodes via electro-opto-thermal multiphysics simulation

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-05-10 DOI:10.1016/j.optlastec.2025.113158

Jiachen Liu , Shunhua Wu , Junyue Zhang , Lang Chen , Jiachen Zhang , Weizhou Huang , Lei Ling , Qingkai Meng , Rui Zhang , Zhenfu Wang , Wei Gao , Te Li

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引用次数: 0

Abstract

Catastrophic optical mirror damage (COMD) remains a critical barrier to scaling the output power of high-power laser diodes. The non-injection window (NIW) structure offers a promising solution to overcome this limitation. This study presents an analysis of high power laser diodes incorporating the NIW design. We introduce a quasi-three-dimensional analysis method that incorporates iterative electro-optical-thermal multimodal coupling. This method account for the effects of temperature on both electrical and optical performance, as well as the impact of electro-optical coupling on the heat generation. Compared to a typical 808 nm single-emitter device with a cavity length of 4 mm and a ridge-waveguide width of 105 μm, the device configuration with a 100 μm NIW demonstrates superior performance. Specifically, the front facet temperature drops by 5.4 °C, and the bandgap shrinkage is reduced by 43 %, reaching a value of 2.1 meV under a continuous wave condition at 10.8 A and room temperature. These results confirm that the NIW is effective in increasing the COMD power threshold.

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非注入窗口对激光二极管前面温度的影响，电光热多物理场模拟

灾难性光学反射镜损伤（COMD）是影响高功率激光二极管输出功率的关键障碍。非注入窗口（NIW）结构为克服这一限制提供了一个有希望的解决方案。本研究提出了结合NIW设计的高功率激光二极管的分析。介绍了一种结合迭代电光热多模态耦合的准三维分析方法。该方法考虑了温度对电学和光学性能的影响，以及电光耦合对热产生的影响。与空腔长度为4 mm、脊波导宽度为105 μm的典型808 nm单发射极器件相比，该器件具有100 μm的NIW结构，具有更好的性能。具体来说，在10.8 a和室温的连续波条件下，前面温度下降了5.4℃，带隙收缩率降低了43%，达到2.1 meV。这些结果证实了NIW在提高COMD功率阈值方面是有效的。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems