Fabrication of a 3D mode size converter for efficient edge coupling in photonic integrated circuits

Autor: Jang, Hyeong-Soon, Heo, Hyungjun, Kim, Sangin, Hwang, Hyeon, Lee, Hansuek, Seo, Min-Kyo, Kwon, Hyounghan, Han, Sang-Wook, Jung, Hojoong
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: We demonstrate efficient edge couplers by fabricating a 3D mode size converter on a lithium niobate-on-insulator photonic platform. The 3D mode size converter is fabricated using an etching process that employs a Si external mask to provide height variation and adjust the width variation through tapering patterns via lithography. The measured edge coupling efficiency with a 3D mode size converter was approximately 1.16 dB/facet for the TE mode and approximately 0.71 dB/facet for the TM mode at a wavelength of 1550 nm.
Comment: 8 pages, 4 figures
Databáze: arXiv