Corral V, Guzmán R, Gordón C, Leijtens X J M, Carpintero G
Opt Lett. 2016 May 1;41(9):1937-40. doi: 10.1364/OL.41.001937.
We report the demonstration of an optical-frequency comb generator based on a monolithically integrated ring laser fabricated in a multiproject wafer run in an active/passive integration process in a generic foundry using standardized building blocks. The device is based on a passive mode-locked ring laser architecture, which includes a Mach-Zehnder interferometer to flatten the spectral shape of the comb output. This structure allows monolithic integration with other optical components, such as optical filters for wavelength selection, or dual wavelength lasers for their stabilization. The results show a -10 dB span of the optical comb of 8.7 nm (1.08 THz), with comb spacing of 10.16 GHz. We also obtain a flatness of 44 lines within a 1.8 dB power variation.
我们报道了一种基于单片集成环形激光器的光频梳发生器的演示，该环形激光器是在通用代工厂中采用标准化构建模块，通过有源/无源集成工艺在多项目晶圆中制造的。该器件基于被动锁模环形激光器架构，其中包括一个马赫曾德尔干涉仪，用于使梳状输出的光谱形状变平坦。这种结构允许与其他光学元件进行单片集成，例如用于波长选择的光学滤波器，或用于稳定化的双波长激光器。结果显示，光梳的 -10 dB 跨度为 8.7 nm（1.08 THz），梳齿间距为 10.16 GHz。我们还在 1.8 dB 的功率变化范围内获得了 44 条线的平坦度。
