论文标题
空间多路复用的单腔双重bame激光器
Spatially multiplexed single-cavity dual-comb laser
论文作者
论文摘要
单腔双重炸弹激光器是一类新的超快激光器，具有广泛的应用空间，包括泵探针采样，光学范围和气体吸收光谱。但是，到目前为止，激光腔多路复用通常是在激光性能或相对时间抑制噪声抑制的权衡。我们提出了一种新方法，用于多样化单个激光腔以支持一对噪声相关的模式。这些模式共享所有腔内组件并采用近乎常见的路径，但不要重叠任何活动元素。我们使用80英里激光器实现该方法，每梳子的平均功率超过2.4瓦，均低于140 FS脉冲。我们达到2.2 fs [20 Hz，100 kHz]的亚周期相对时间抖动。借助这种新的多路复用技术，我们可以对重复率差异ΔFREP实施缓慢的反馈，从而使该数量无漂移，低噪声和可调节 - 这是用于实际应用的关键组合，而实际应用中缺少了先前的单个型双弯曲系统。
Single-cavity dual-comb lasers are a new class of ultrafast lasers which have a wide possible application space including pump-probe sampling, optical ranging, and gas absorption spectroscopy. However, to this date laser cavity multiplexing usually came to the trade-off in laser performance or relative timing noise suppression. We present a new method for multiplexing a single laser cavity to support a pair of noise-correlated modes. These modes share all intracavity components and take a near-common path, but do not overlap on any active elements. We implement the method with an 80-MHz laser delivering more than 2.4 Watts of average power per comb with sub-140 fs pulses. We reach sub-cycle relative timing jitter of 2.2 fs [20 Hz, 100 kHz]. With this new multiplexing technique, we could implement slow feedback on the repetition rate difference Δfrep, enabling this quantity to be drift-free, low-jitter, and adjustable - a key combination for practical applications that was lacking in prior single-cavity dual-comb systems.
