780nm窄线宽外腔二极管激光器用于量子传感
Junzhu Ye1,2, Chenggang Guan2, Puchu Lv2
1School of Science, Hubei University of Technology, Wuhan 430068, China.
Sensors (Basel, Switzerland)
|November 27, 2024
概括
一种新型的外腔二极管激光器 (ECDL) 在780nm提供了狭窄的线宽和低噪声. 这种紧而轻量级的激光器满足了量子精度测量和冷原子技术的需求.
科学领域:
- 光学和光子学 在光学和光子学.
- 激光技术 激光技术 激光技术
背景情况:
- 先进的光源对于激光通信,量子精度测量和冷原子技术至关重要.
- 现有的780nm激光器往往缺乏所需的窄线宽和低噪声特性.
研究的目的:
- 开发和描述一个紧的,狭窄的线宽,低噪音的外腔二极管激光器 (ECDL),在780nm周围运行.
- 为了评估基于干扰波器的ECDL (IF-ECDL) 在精密应用中的性能.
主要方法:
- 使用Fabry-Pérot标准和干扰波器 (IF) 构建了一个外部腔二极管激光器 (ECDL).
- 精确的温度和电流控制用于连续波长调节.
- 测量了关键性能指标,包括输出功率,侧模式抑制比 (SMSR),调范围和线宽.
主要成果:
- 该IF-ECDL实现了14mW的输出功率,SMSR为54dB.
- 已经证明了527 GHz (1.068 nm) 的温度控制模式跳转无调调范围.
- 激光器表现出570Hz的狭窄输出线宽和出色的单模式特性.
结论:
- 与传统的780nm激光相比,开发的IF-ECDL提供了更高的光谱纯度,更窄的线宽和更低的噪声.
- 激光器显著的小型化 (25 × 15 × 8.5 mm3) 和轻量设计 (19.8 g) 为便携式和集成系统提供了显著的优势.
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