Ultra-low-loss integrated visible photonics using thin-film lithium niobate

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Boris Desiatov
  • Amirhassan Shams-Ansari
  • Mian Zhang
  • Cheng Wang
  • Marko Loncar

Detail(s)

Original languageEnglish
Pages (from-to)380-384
Journal / PublicationOptica
Volume6
Issue number3
Online published15 Mar 2019
Publication statusPublished - Mar 2019

Abstract

Integrated photonics is a powerful platform that can improve the performance and stability of optical systems while providing low-cost, small-footprint, and scalable alternatives to implementations based on free-space optics. While great progress has been made on the development of low-loss integrated photonics platforms at telecom wavelengths, the visible wavelength range has received less attention. Yet, many applications utilize visible or near-visible light, including those in optical imaging, optogenetics, and quantum science and technology. Here we demonstrate an ultra-low-loss integrated visible photonics platform based on thin-film lithium niobate on an insulator. Our waveguides feature ultra-low propagation loss of 6 dB/m, while our microring resonators have an intrinsic quality factor of 11 million, both measured at 637 nm wavelength. Additionally, we demonstrate an on-chip visible intensity modulator with an electro-optic bandwidth of 10 GHz, limited by the detector used. The ultra-low-loss devices demonstrated in this work, together with the strong second-and third-order nonlinearities in lithium niobate, open up new opportunities for creating novel passive and active devices for frequency metrology and quantum information processing in the visible spectrum range.

Research Area(s)

  • WAVE-GUIDES, 2ND-HARMONIC GENERATION, SILICON, RESONATORS, DIAMOND, PERFORMANCE, FABRICATION, MODULATORS

Citation Format(s)

Ultra-low-loss integrated visible photonics using thin-film lithium niobate. / Desiatov, Boris; Shams-Ansari, Amirhassan; Zhang, Mian; Wang, Cheng; Loncar, Marko.

In: Optica, Vol. 6, No. 3, 03.2019, p. 380-384.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal