Self-mode-locking in a high-power hybrid silicon nitride integrated laser

Yvan Klaver*, Jörn P. Epping, Chris G.H. Roeloffzen, David A. I. Marpaung

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
163 Downloads (Pure)

Abstract

Integrated mode-locked lasers are useful tools in microwave photonic applications as a local oscillator. In particular, hybrid integrated lasers could easily be integrated with passive processing circuits. In this Letter, we report on the self-mode-locking of a hybrid integrated laser comprising two indium phosphide gain sections and a silicon nitride feedback circuit that filters light using two ring resonators. The hybrid laser is shown to mode-lock and to have a mostly frequency-modulated field in the cavity using a stepped-heterodyne optical complex spectrum analysis. A mostly frequency modulated field output is good for high powers per line due to a more continuous emission, compared with mode-locked lasers using a saturable absorber; additionally, the filter limits the bandwidth of the comb, condensing the power to the fewer comb lines.
Original languageEnglish
Pages (from-to)198-201
Number of pages4
JournalOptics letters
Volume47
Issue number1
Early online date24 Dec 2021
DOIs
Publication statusPublished - 1 Jan 2022

Keywords

  • 2022 OA procedure
  • Laser sources
  • Ring resonators
  • Saturable absorbers
  • Silicon nitride
  • Single mode lasers
  • Hybrid lasers

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