Femtosecond laser inscription or writing has been recognized as a powerful technique to
engineer various materials toward a number of applications. By efficient modification of …

On-chip efficient nonlinear functions are instrumental in escalating the utilities and
performance of photonic integrated circuits, especially for a wide range of classical and …

摘要非线性光子晶体能够实现高效的非线性光学过程, 其制备手段吸引了该领域研究者的高度
关注. 飞秒激光加工技术具有极高的精度, 分辨率和灵活性, 相比传统的非线性结构制备工艺具有 …

We report on an integrated 1× 5 beam splitter based on optical waveguides with type I and
type II modifications of femtosecond laser (fs-laser) writing in lithium tantalate (LiTaO 3) …

Lithium tantalate (LT) is one of the most attractive optical nonlinear materials, as it
possesses a high optical damage threshold and great UV transparency (0.28–5.5 µm) …

Nd: YAG crystal is one of the major gain media used in high-power solid-state laser systems.
In this work, the single-line waveguides with Type Ⅰ modification have been fabricated in …

In this paper, we demonstrate a quasi-phase matched type-II waveguide fabricated by
femtosecond laser direct writing in Z-cut MgO doped lithium niobate. Compared with the …

We demonstrate optical waveguides fabricated in periodically poled MgO-doped
stoichiometric lithium tantalate crystals using an fs-laser direct-write process. Two different …

We report on the fabrication of waveguides and beam splitters in pure YAG crystals by
femtosecond laser direct writing (FLDW). During the femtosecond laser writing process, a …

We demonstrate second harmonic generations in quasi-phase matched cladding
waveguide structures fabricated by direct femtosecond laser writing. Waveguides with …