On-chip electro-optically tunable Fabry-Perot cavity laser on erbium doped thin film lithium niobate
Difeng Yin, Shupeng Yu, Zhiwei Fang, QINFEN HUANG, Lang Gao, Zhe Wang, jian Liu, Ting Huang, Haisu Zhang, Min Wang, Ya Cheng
Abstract
We demonstrate an on-chip electro-optically tunable Fabry-Perot (FP) cavity laser on Er 3+ -doped thin film lithium niobate (Er: TFLN). The FP cavity consists of two Sagnac loop reflectors at the two ends with a loaded quality factor of 1.3 × 10 5 and a free spectral range of 68 pm. The fabricated Er: TFLN FP laser structure is integrated with microelectrodes designed for electro-optically tuning, and a continuous laser wavelength tuning with 24 pm around 1544 nm is achieved by applying a driving voltage from −6 V to 6 V.
Topics & Concepts
Materials scienceLithium niobateFabry–Pérot interferometerOptoelectronicsErbiumLaserOpticsDopingThin filmLithium (medication)WavelengthNanotechnologyPhysicsEndocrinologyMedicinePhotonic and Optical DevicesAdvanced Fiber Laser TechnologiesPhotorefractive and Nonlinear Optics