On-chip coherent beam combination of waveguide amplifiers on Er<sup>3+</sup>-doped thin film lithium niobate
Rui Bao, Lvbin Song, Jinming Chen, Zhe Wang, Jian Liu, Lang Gao, Zhaoxiang Liu, Zhihao Zhang, Min Wang, Haisu Zhang, Zhiwei Fang, Ya Cheng
Abstract
We demonstrate on-chip coherent beam combination of two waveguide amplifiers on Er 3+ -doped thin film lithium niobate (Er:TFLN) platform. Our device is built based on an electro-optic modulator fabricated on Er:TFLN. The output power of the coherently combined amplifiers is measured as high as 12.9 mW, surpassing that of previous single waveguide amplifiers based on an Er 3+ -doped thin film lithium niobate platform.
Topics & Concepts
Lithium niobateMaterials scienceAmplifierOpticsWaveguideThin filmOptoelectronicsOptical amplifierErbiumDopingLaserPhysicsCMOSNanotechnologyPhotorefractive and Nonlinear OpticsPhotonic and Optical DevicesAdvanced Fiber Laser Technologies