The reconfigurable dispersion compensator based on LNOI waveguide grating

Sun, Yinxia; Ji, Wei; Yin, Rui; Wu, Chonghao; Gong, Zisu

doi:10.1007/s11082-018-1574-1

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…In this work, a PPLN thin film is introduced to have the left and right parts of the microring polarized with opposite directions, so that the maximum electro-optic modulation efficiency can be achieved. When a vertical electric field is applied to the surface of the chip, the modulated effective refractive index of the waveguide can be given by [35]:…”

Section: Resultsmentioning

confidence: 99%

Simulation and Analysis of Microring Electric Field Sensor Based on a Lithium Niobate-on-Insulator

Lin

Han

et al. 2021

Crystals

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With the increasing sensitivity and accuracy of contemporary high-performance electronic information systems to electromagnetic energy, they are also very vulnerable to be damaged by high-energy electromagnetic fields. In this work, an all-dielectric electromagnetic field sensor is proposed based on a microring resonator structure. The sensor is designed to work at 35 GHz RF field using a lithium niobate-on-insulator (LNOI) material system. The 2.5-D variational finite difference time domain (varFDTD) and finite difference eigenmode (FDE) methods are utilized to analyze the single-mode condition, bending loss, as well as the transmission loss to achieve optimized waveguide dimensions. In order to obtain higher sensitivity, the quality factor (Q-factor) of the microring resonator is optimized to be 106 with the total ring circumference of 3766.59 μm. The lithium niobate layer is adopted in z-cut direction to utilize TM mode in the proposed all-dielectric electric field sensor, and with the help of the periodically poled lithium niobate (PPLN) technology, the electro-optic (EO) tunability of the device is enhanced to 48 pm·μm/V.

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Section: Resultsmentioning

confidence: 99%