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Updated: Oct 15, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

通过光注入锁定和残余相位噪声抵消实现的低噪声共振放大

Y Lange Simmons, James Greenberg, Brendan M Heffernan

|October 13, 2026

Abstract:

我们展示了一种共振光学放大器，该放大器结合了注入锁定与前馈抵消残余相位噪声的技术。该波长无关架构采用半导体激光器作为功率放大器，同时保持弱参考光的光谱纯度。残余相位误差通过光外差检测进行测量，并利用前馈相位校正予以抵消。在傅里叶频率高于1 kHz、注入比低至-57 dB的条件下，该放大器相较于单独使用注入锁定，相位噪声抑制效果最高可达38 dB。该方法实现了对低功率、低噪声光学参考信号的放大，包括光学频率梳中的单根谱线，且放大自发辐射（ASE）极小。

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Double Resonance Techniques: Overview

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Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...