Broadband adiabatic couplers in thin-film lithium niobate on insulator

Yi Xin Lin, Mohammadreza Younesi, Hung Pin Chung, Hua Kung Chiu, Reinhard Geiss, Quan Hsiang Tseng, Frank Setzpfandt, Thomas Pertsch, Yen Hung Chen

Research output: Contribution to journalConference articlepeer-review


We demonstrate broadband adiabatic couplers using lithium niobate on insulator (LNOI) waveguides with a footprint reduced by 98% relative to bulk LN devices. LNOI couplers with coupling efficiency >95% across telecom S-C-L bands are obtained.

Original languageEnglish
Article numberSM4L.3
JournalOptics InfoBase Conference Papers
StatePublished - 2021
EventCLEO: Science and Innovations, CLEO:S and I 2021 - Part of Conference on Lasers and Electro-Optics, CLEO 2021 - Virtual, Online, United States
Duration: 9 May 202114 May 2021


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