On-chip laser emission from a 2-µm-thick Er 3+ -doped lithium niobate on insulator
Year: 2025
Type: article
Abstract: We demonstrate a laser emission scheme based on a 2-μm-thick Er 3+ -doped lithium niobate on insulator (Er:LNOI), using a Fabry-Pérot (FP) cavity with Sagnac loop reflectors (SLRs). The experimental results show a multimode laser output at a central wavelength of 1531.5 nm, with a measured on-chip power of 0.36 mW, and slope efficiency of 0.57%. We enhance the laser power of Er:LNOI lasers via a 2-μm-thick lithium niobate on insulator (LNOI) with an enlarged mode area. Additionally, it offers high coupling efficiency with the taper-lensed fiber, making it suitable for light sources in lithium niobate based photonic integrated circuits (PICs) and optical communication systems.
Source: Optics Express
DOI: 10.1364/oe.580200
Authors: Guorong Hou, Jiacheng Liu, Pingyu Zhu, Jingyi Lv, Yan Wang, Kun Wang, Ping Xu, Zhihong Zhu
Institution: National University of Defense Technology
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Award: G2860382783
OpenAlex ID: W4416726384