论文标题
使用动态偏移频率调整的中红外光学频率梳子生成的简单方法
Simple method for mid-infrared optical frequency comb generation with dynamic offset frequency tuning
论文作者
论文摘要
我们提出了一种简单的方法，用于基于通过连续波激光器播种的单秒飞秒光学参数生成的完全稳定的中红外光学频率梳子生成。我们已经在定期粘的尼橡胶晶体中实现了该方法，该方法在3325-4000 nm（2380-3030 cm -1）上产生频率梳可调。该方法以已知和稳定的载体 - 内玻璃偏移量（CEO）频率生成中红外（IDLER）梳子，而无需直接检测到它。惰轮的首席执行官几乎可以对重复率的一半进行调整，并且可以在保持其中心频率的同时进行调节。加上高输出功率（最多700兆瓦）和低强度噪声（0.018％集成在10 Hz-2 MHz带宽中），这使得在许多应用中有望证明，诸如高精度分子光谱，频率元学和高谐波的许多应用中有希望。
We present a simple method for fully-stabilized mid-infrared optical frequency comb generation based on single-pass femtosecond optical parametric generation that is seeded by a continuous-wave laser. We have implemented the method in a periodically poled lithium niobate crystal that produces a frequency comb tunable across 3325 - 4000 nm (2380 - 3030 cm-1). The method generates the mid-infrared (idler) comb with known and stabilized Carrier-Envelope Offset (CEO) frequency without the need to directly detect it. The idler CEO is continuously tunable for almost half of the repetition rate and can be modulated, while maintaining its central frequency. Together with the high output power (up to 700 mW) and low intensity noise (0.018% integrated in 10 Hz - 2 MHz bandwidth) this makes the demonstrated mid-infrared frequency comb promising for many applications such as high-precision molecular spectroscopy, frequency metrology and high harmonic generation.
