Preprint Article Version 1 This version is not peer-reviewed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)

How to cite: Lin, J.; Zhou, J.; Wu, R.; Wang, M.; Fang, Z.; Chu, W.; Zhang, J.; Qiao, L.; Cheng, Y. High-Precision Measurement of a Propagation Loss of Single-Mode Optical Waveguides on Lithium Niobate On Insulator. Preprints 2019, 2019070253 (doi: 10.20944/preprints201907.0253.v1). Lin, J.; Zhou, J.; Wu, R.; Wang, M.; Fang, Z.; Chu, W.; Zhang, J.; Qiao, L.; Cheng, Y. High-Precision Measurement of a Propagation Loss of Single-Mode Optical Waveguides on Lithium Niobate On Insulator. Preprints 2019, 2019070253 (doi: 10.20944/preprints201907.0253.v1).

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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