Add-Drop Filter Based on Wavelength-Dependent Light Interlink between Lithium-Niobate Microwaveguide Chip and Microfiber Knot Ring
Suxu Zhou,
Yuan Wang,
Donghui He,
Yang Hu,
Jianhui Yu,
Zhe Chen,
Heyuan Guan,
Jun Zhang,
Yunhan Luo,
Jieyuan Tang,
Huihui Lu
Affiliations
Suxu Zhou
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Yuan Wang
Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
Donghui He
Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
Yang Hu
Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
Jianhui Yu
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Zhe Chen
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Heyuan Guan
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Jun Zhang
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Yunhan Luo
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Jieyuan Tang
Key Laboratory of Optoelectronic Information and Sensing, Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
Huihui Lu
Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
In this paper, we experimentally demonstrate an add-drop filter based on wavelength-dependent light coupling between a lithium-niobate (LN) microwaveguide chip and a microfiber knot ring (MKR). The MKR was fabricated from a standard single-mode fiber, and the LN microwaveguide chip works as a robust substrate to support the MKR. The guided light can be transmitted through add and drop functionality and the behaviors of the add-drop filter can be clearly observed. Furthermore, its performance dependence on the MKR diameter is also studied experimentally. The approach, using a LN microwaveguide chip as a platform to couple and integrate the MKR, may enable us to realize an optical interlink between the microstructured chip and the micro/nano fiber-optic device.
