Preprint Article Version 1 This version is not peer-reviewed

High-Precision Measurement of a Propagation Loss of Single-Mode Optical Waveguides on Lithium Niobate On Insulator

Version 1 : Received: 20 July 2019 / Approved: 23 July 2019 / Online: 23 July 2019 (10:03:57 CEST)

A peer-reviewed article of this Preprint also exists.

Lin, J.; Zhou, J.; Wu, R.; Wang, M.; Fang, Z.; Chu, W.; Zhang, J.; Qiao, L.; Cheng, Y. High-Precision Propagation-Loss Measurement of Single-Mode Optical Waveguides on Lithium Niobate on Insulator. Micromachines 2019, 10, 612. Lin, J.; Zhou, J.; Wu, R.; Wang, M.; Fang, Z.; Chu, W.; Zhang, J.; Qiao, L.; Cheng, Y. High-Precision Propagation-Loss Measurement of Single-Mode Optical Waveguides on Lithium Niobate on Insulator. Micromachines 2019, 10, 612.

Journal reference: Micromachines 2019, 10, 612
DOI: 10.3390/mi10090612

Abstract

We demonstrate fabrication of single-mode optical waveguides on lithium niobate on insulator (LNOI) by optical patterning combined with chemo-mechanical polishing. The fabricated LNOI waveguides have a nearly symmetric mode profile of a mode field size of ~2.5 µm (full-width at half maximum). We develop a high-precision measurement approach by which the single mode waveguides are characterized to have a propagation loss of ~0.042 dB/cm.

Subject Areas

lithium niobate; waveguide; photonic integrated circuit; optical lithography; chemo-mechanical polish

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