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基于光的频率稳定传输通过多通道FPGA跨频谱传输
概括
本研究介绍了一种使用光学频率的数字系统,同时将超稳定激光特性传递给多个激光器. 这种强大的方法可以实现高连贯性传输,用于诸如光学时钟和量子模拟等应用.
科学领域:
- 原子,分子和光学物理学
- 量子光学是一种量子光学.
- 激光物理 激光物理
背景情况:
- 光学频率对于将超稳定激光器的光谱特性转移到不同波长至关重要.
- 现有的方法通常需要个别激光稳定和复杂的设置.
- 同时的多激光锁定是一个重大的技术挑战.
研究的目的:
- 开发和演示一个数字锁定系统,用于同时使用光学频率进行多激光稳定.
- 为了使可靠和独立的连贯传输从参考振荡器到多个激光器.
- 展示系统在支持先进应用程序 (如光学时钟组合) 的能力.
主要方法:
- 使用数字锁定系统,通过光学频率将多达六个激光与单个参考振荡器同步.
- 在宽线宽模式下运行系统,而不需要对目标激光器进行预先稳定.
- 从Yb光学格子时钟激光器 (1156 nm) 传输连贯性到1550 nm区域的激光器.
主要成果:
- 实现了多个激光器与高性能参考振荡器同时独立锁定.
- 在1秒内显示的短期不稳定性低于10−14,即使在宽线宽度模式下.
- 成功将连贯性转移到用于长距离光纤频率传播的激光器,最小的不稳定性.
结论:
- 数字锁定系统为多激光稳定提供了强大,可重新配置和模块化的方法.
- 这项技术最大限度地降低了设置复杂性和硬件诱导的影响,使无升级成为可能.
- 该系统非常适合要求多个超稳定激光器的应用,包括光时钟网络,光谱和量子模拟.
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