On-chip electro-optically tunable Fabry-Perot cavity laser on erbium doped thin film lithium niobate

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Abstract

We demonstrate an on-chip electro-optically tunable Fabry-Perot (FP) cavity laser on Er3+-doped thin film lithium niobate (Er: TFLN). The FP cavity consists of two Sagnac loop reflectors at the two ends with a loaded quality factor of 1.3 × 105 and a free spectral range of 68 pm. The fabricated Er: TFLN FP laser structure is integrated with microelectrodes designed for electro-optically tuning, and a continuous laser wavelength tuning with 24 pm around 1544 nm is achieved by applying a driving voltage from −6 V to 6 V.

Original languageEnglish
Pages (from-to)2644-2650
Number of pages7
JournalOptical Materials Express
Volume13
Issue number9
DOIs
StatePublished - 2023

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