On-chip Brillouin lasers based on 10 million-Q chalcogenide resonators without direct etch process

Sangyoon Han, Dae Gon Kim, Joonhyuk Hwang, In Hwan Do, Dongin Jeong, Yong Hee Lee, Duk Yong Choi, Hansuek Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We present a new device platform which defines on-chip chalcogenide waveguide/resonators without directly etching chalcogenide. Using our platform, we have demonstrated chalcogenide ring resonators with record high Q-factor exceeding 1.1x107 which is 10 times larger than previous record on on-chip chalcogenide resonators. A ring cavity is designed and fabricated for Stimulated Brillouin lasing on our platform. Thanks to the high-Q factor, Brillouin lasing with threshold power of 1 mW is demonstrated. This value is more than an order of magnitude improvement than previous world record for on-chip chalcogenide Brillouin lasers. We also developed an efficient and flexible method for resonator waveguide coupling with our device platform. Coupling between a resonator and a waveguide can be varied from under coupled region to over-coupled region.

Original languageEnglish
Title of host publicationLaser Resonators, Microresonators, and Beam Control XXII
EditorsAlexis V. Kudryashov, Alan H. Paxton, Vladimir S. Ilchenko, Andrea M. Armani
PublisherSPIE
ISBN (Electronic)9781510632950
DOIs
StatePublished - 2020
EventLaser Resonators, Microresonators, and Beam Control XXII 2020 - San Francisco, United States
Duration: 3 Feb 20206 Feb 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11266
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser Resonators, Microresonators, and Beam Control XXII 2020
Country/TerritoryUnited States
CitySan Francisco
Period3/02/206/02/20

Bibliographical note

Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

Keywords

  • Brillouin laser
  • Chalcogenide
  • High-Q
  • Low-threshold
  • On-chip
  • Resonator

Fingerprint

Dive into the research topics of 'On-chip Brillouin lasers based on 10 million-Q chalcogenide resonators without direct etch process'. Together they form a unique fingerprint.

Cite this