通过优化有源元件-散热器界面的反射率抑制薄板激光器中的ASE。

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-04-01 DOI:10.1364/OL.554313

D A Kuzin, I I Kuznetsov, A N Mitrofanov, E A Perevezentsev, A V Starobor, O V Palashov

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引用次数: 0

摘要

提出了一种抑制薄板激光器放大自发发射效应的方法。该方法基于在大入射角下降低有源元件镜面的反射率，并将ASE引导到散热器的主体。通过优化多层介质反射镜和直接粘合有源元件和散热器或使用高折射率胶来实现反射率的降低。模拟了镜面反射系数分布对镜面反射效应及其对激光特性的影响。提出了一种能够几乎完全抑制ASE的有源元件(AE)-散热器接口。这大大增加了增益和存储的能量，而不会以任何方式影响信号和泵浦光束。

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ASE suppression in a thin-disk laser by optimizing reflectivity at an active element-heatsink interface.

A method for suppressing the effect of amplified spontaneous emission (ASE) in a thin-disk (TD) laser is proposed. The method is based on reducing the reflectivity of the mirror surface of the active element at large angles of incidence and directing the ASE to the bulk of the heatsink. Reflectivity reduction is achieved through the optimization of the multilayer dielectric mirror and bonding active element and heatsink directly or with a high refractive index glue. The ASE effect and its impact on laser characteristics depending on the reflection coefficient profile at the mirror face are modeled. Active element (AE)-heatsink interfaces allowing nearly complete ASE suppression are proposed. This significantly increases the gain and stored energy, without affecting the signal and pump beams in any way.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.