Widely-tunable mid-infrared fiber-feedback optical parametric oscillator

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

Abstract

We devise and implement two variants of mid-infrared optical parametric oscillators (OPOs) based on a polarization-maintaining fiber-feedback cavity, which allow to robustly deliver sub-picosecond MIR pulses without the need of active stabilization. The first one integrates an erbium-doped fiber into the OPO cavity as the additional gain medium. The synergistic dual-gain operation significantly reduces the pump threshold to launch a stable MIR pulse formation. The other OPO configuration adopts a chirped-poling nonlinear crystal in a passive-fiber cavity to achieve a broader operational spectral range. The wide phase-matching bandwidth facilitates easy wavelength tuning by simply adjusting the cavity length through the dispersion filtering effect. Therefore, the presented mid-infrared OPO source is featured with high compactness, robust operation, and wide tunability, which would be attractive for subsequent applications, such as infrared photonics, biomedical examination, and molecular spectroscopy.

Original languageEnglish
Title of host publicationAdvanced Lasers, High-Power Lasers, and Applications XV
EditorsShibin Jiang, Zhaoyang Li, Ingmar Hartl
PublisherSPIE
ISBN (Electronic)9781510681927
DOIs
StatePublished - 2024
EventAdvanced Lasers, High-Power Lasers, and Applications XV 2024 - Nantong, China
Duration: 12 Oct 202414 Oct 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13232
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvanced Lasers, High-Power Lasers, and Applications XV 2024
Country/TerritoryChina
CityNantong
Period12/10/2414/10/24

Keywords

  • Fiber laser
  • Mid-infrared generation
  • Nonlinear optics
  • Optical parametric oscillator

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