论文标题
以楔形微腔内剪裁Kerr梳子生成的色散
Dispersion tailoring in wedge microcavities for Kerr comb generation
论文作者
论文摘要
微孔子中的组速度分散体的形状是宽带光学频率梳子生成的重要组成部分。小的谐振器 - 带弯曲的半径 - 为宽梳地层提供所需的大型自由光谱范围。但是，更紧密的弯曲通常会限制梳子的形成，因为它会增强正常的组速度分散。我们通过实验证明，小拉迪乌斯（100 $ $ m）的侧壁角，3 $μ$ m thick硅质楔形微波器可实现正常和异常状态的色散调整，而不会显着影响自由光谱范围。楔形角度为$ 55^{\ circ} $（异常分散）的微型波克用于演示300 nm带宽KERR光学频率梳子。
The shaping of group velocity dispersion in microresonators is an important component in the generation of wideband optical frequency combs. Small resonators - with tight bending radii - offer the large free-spectral range desirable for wide comb formation. However, the tighter bending usually limit comb formation as it enhances normal group velocity dispersion. We experimentally demonstrate that engineering the sidewall angle of small-radius (100 $μ$m), 3 $μ$m-thick silica wedge microdisks enables dispersion tuning in both normal and anomalous regimes, without significantly affecting the free spectral range. A microdisk with wedge angle of $55^{\circ}$ (anomalous dispersion) is used to demonstrate a 300 nm bandwidth Kerr optical frequency comb.
