Coherent two-octave-spanning supercontinuum generation in lithium-niobate waveguides

Mengjie Yu, Boris Desiatov, Yoshitomo Okawachi, Alexander L. Gaeta, Marko Lončar

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

Abstract

We demonstrate coherent supercontinuum generation (SCG) in a monolithically integrated lithium-niobate waveguide, under the presence of second- and third-order nonlinear effects. We achieve more than two octaves of optical bandwidth in a 0.5-cm-long waveguide with 100-picojoule-level pulses. Dispersion engineering of the waveguide allows for spectral overlap between the SCG and the second harmonic, which enables direct detection of the carrier–envelope offset frequency f CEO using a single waveguide. We measure the f CEO of our femtosecond pump source with a 30-dB signal-to-noise ratio.

Original languageEnglish
Pages (from-to)1222-1225
Number of pages4
JournalOptics Letters
Volume44
Issue number5
DOIs
StatePublished - 1 Mar 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Optical Society of America

Funding

Acknowledgment. Device fabrication is performed at the Harvard University Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the NSF. Funding. National Science Foundation (NSF) (ECCS1609549, ECCS-1740296 E2CDA, ECCS1541959); Defense Advanced Research Projects Agency (DARPA) (W31P4Q-15-1-0013); Air Force Office of Scientific Research (AFOSR) (FA9550-15-1-0303). National Science Foundation (NSF) (ECCS1609549, ECCS-1740296 E2CDA, ECCS1541959); Defense Advanced Research Projects Agency (DARPA) (W31P4Q-15-1-0013); Air Force Office of Scientific Research (AFOSR) (FA9550-15-1-0303). Device fabrication is performed at the Harvard University Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the NSF.

FundersFunder number
Harvard University Center for Nanoscale Systems
National Science FoundationECCS1541959, ECCS1609549, ECCS-1740296 E2CDA
Air Force Office of Scientific ResearchFA9550-15-1-0303
Defense Advanced Research Projects AgencyW31P4Q-15-1-0013
Cognitive Neuroscience Society
National Science FoundationECCS-1740296

    Fingerprint

    Dive into the research topics of 'Coherent two-octave-spanning supercontinuum generation in lithium-niobate waveguides'. Together they form a unique fingerprint.

    Cite this