On-chip octave-spanning supercontinuum generation in hybrid slot waveguide by power-efficient dual pump

Kangzhu Zhou, Qian Li*, Zhe Kang, Jiayao Huang, Alex WAI

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We propose an on-chip cascaded structure consisting of a microresonator and a slot waveguide to generate the high-performance supercontinuum harnessing the dual pump scenario. Utilizing a single CW pump with the power of only 0.1 W, the dissipative Kerr soliton with the full width at half maximum of 69.2 fs and the peak power of 103.3 W is generated and couples out the microresonator together with the CW pump to serve as a dual pump seed for the supercontinuum generation in the followed slot waveguide. The slot waveguide built upon a silicon-organic hybrid structure is carefully designed to possess remarkable nonlinearity and appropriate dispersion profile for smooth and broadband supercontinuum generation. We have numerically achieved the 1.56 octave-spanning supercontinuum spanning 1 ~ 3 μm with the proposed dual pump scenario. The supercontinuum generated by the dual pump scenario shows flattened, broadband, and quasi-right-angled-trapezoid shape, along with good coherence. Compared with the single pump scenario of CW or soliton pulse only, the supercontinuum generated by the dual pump scenario possesses the much stronger spectrum, broader spanning, and medium coherence. Our work opens up a new path for on-chip and cost-effective supercontinuum generation with the high performance of intensity, bandwidth, and coherence.

Original languageEnglish
Article number104195
JournalResults in Physics
Volume24
DOIs
Publication statusPublished - May 2021

Scopus Subject Areas

  • Physics and Astronomy(all)

User-Defined Keywords

  • Frequency comb
  • Integrated optics
  • Supercontinuum

Fingerprint

Dive into the research topics of 'On-chip octave-spanning supercontinuum generation in hybrid slot waveguide by power-efficient dual pump'. Together they form a unique fingerprint.

Cite this