Electro-optically tunable microdisk laser on Er3+-doped lithium niobate thin film
Yiran Zhu, Yuan Zhou, Zhe Wang, Zhiwei Fang, Zhaoxiang Liu, Wei Chen, Min Wang, Haisu Zhang, Ya Cheng
Abstract
We report an electro-optically (EO) tunable microdisk laser fabricated on the erbium (Er 3 )-doped lithium niobate on insulator (LNOI) substrate. By applying a variable voltage on a pair of integrated chromium (Cr) microelectrodes fabricated near the LNOI microdisk, electro-optic modulation with an effective resonance-frequency tuning rate of 2.6 GHz/100 V has been achieved. This gives rise to a tuning range of 45 pm when the electric voltage is varied between -200 V and 200 V.
Topics & Concepts
Materials scienceLithium niobateOpticsLaserDopingOptoelectronicsThin filmFerroelectricitySubstrate (aquarium)VoltageInsulator (electricity)NanotechnologyDielectricQuantum mechanicsGeologyPhysicsOceanographyPhotonic and Optical DevicesPhotorefractive and Nonlinear OpticsAdvanced Fiber Laser Technologies