Integrated thin film lithium niobate Fabry–Perot modulator [Invited]
Mengyue Xu, Mingbo He, Yuntao Zhu, Lin Liu, Lifeng Chen, Siyuan Yu, Xinlun Cai
Abstract
Integrated traveling-wave lithium niobate modulators need relatively large device lengths to achieve low drive voltage. To increase modulation efficiency within a compact footprint, we report an integrated Fabry–Perot-type electro-optic thin film lithium niobate on insulator modulator comprising a phase modulation region sandwiched between two distributed Bragg reflectors. The device exhibits low optical loss and a high tuning efficiency of 15.7 pm/V. We also confirm the modulator's high-speed modulation performance by non-return-to-zero modulation with a data rate up to 56 Gbit/s.
Topics & Concepts
Lithium niobateMaterials scienceOpticsModulation (music)Optical modulatorPhase modulationFabry–Pérot interferometerElectro-optic modulatorOptoelectronicsGigabitThin filmPhysicsWavelengthNanotechnologyPhase noiseAcousticsPhotorefractive and Nonlinear OpticsPhotonic and Optical DevicesAdvanced Fiber Laser Technologies