A single-frequency single-resonator laser on erbium-doped lithium niobate on insulator

Tieying Li; Kan Wu; Minglu Cai; Zeyu Xiao; Hongyi Zhang; Chao Li; Junmin Xiang; Yi Huang; Jianping Chen

doi:10.1063/5.0061815

APL Photonics (Oct 2021)

A single-frequency single-resonator laser on erbium-doped lithium niobate on insulator

Tieying Li,
Kan Wu,
Minglu Cai,
Zeyu Xiao,
Hongyi Zhang,
Chao Li,
Junmin Xiang,
Yi Huang,
Jianping Chen

Affiliations

Tieying Li: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Kan Wu: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Minglu Cai: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Zeyu Xiao: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Hongyi Zhang: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Chao Li: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Junmin Xiang: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Yi Huang: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Jianping Chen: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

DOI: https://doi.org/10.1063/5.0061815
Journal volume & issue: Vol. 6, no. 10
pp. 101301 – 101301-6

Abstract

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Erbium-doped lithium niobate on insulator (Er:LNOI) is a promising platform for photonic integrated circuits as it adds gain to the LNOI system and enables on-chip lasers and amplifiers. A challenge for the Er:LNOI laser is to increase its output power while maintaining single-frequency and single (-transverse)-mode operation. In this work, we demonstrate that single-frequency and single-mode operation can be achieved even in a single multi-mode Er:LNOI microring by introducing mode-dependent loss and gain competition. In a single microring with a free spectral range of 192 GHz, we have achieved single-mode lasing with an output power of 2.1 µW, a side-mode suppression of 35.5 dB, and a linewidth of 0.9 MHz.

Published in APL Photonics

ISSN: 2378-0967 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://aplphotonics.aip.org

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