在中红外激光芯片上驱动明亮的孤独子
Dmitry Kazakov1,2, Theodore P Letsou3,4, Marco Piccardo3,5,6
1Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA. kazakov@seas.harvard.edu.
Nature
|April 16, 2025
概括
一个新的直流驱动的半导体激光芯片产生了紧,明亮的中红外脉冲. 这一突破为先进的光子应用提供了比现有的超快脉冲发射器更简单,更有效的替代方案.
科学领域:
- 综合光子学
- 量子光学
- 半导体激光技术
背景情况:
- 紧的中红外 (3-12μm) 脉冲源目前是有限的.
- 现有的水源很庞大,效率低下,而且依赖复杂的下降转换方法.
研究的目的:
- 展示一种新型,紧且高效的半导体激光芯片,
- 建立一个交钥匙的解决方案,用于在中红外波长范围内产生明亮的单子.
主要方法:
- 开发一个纯直流驱动的半导体激光芯片与集成组件.
- 在激活的非线性激光共振器中利用快速双稳定性来生成单子.
- 驱动激光,主动环共振器,合器和过器的单体集成.
主要成果:
- 在8.3μm中心波长下生成1比秒 (ps) 单子.
- 在GHz的重复率下运行,并保持稳定的输出数小时.
- 一个统一主动和被动微共振器频率物理的方案的演示.
结论:
- 开发的激光芯片为中红外单体生成提供了紧,高效和交钥匙的解决方案.
- 这项技术使中红外可访问的非线性集成光子学成为可能.
- 该设备可以使用标准的工业制造协议制造.
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