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Supercontinuum generation in a graded-index multimode tellurite fiber
Optics Letters
|June 2, 2024
Summary
We generated a broadband supercontinuum (SC) from 790 to 2900 nm using a novel tellurite fiber. This research paves the way for high-power mid-infrared SC sources.
Area of Science:
- Photonics and Optics
- Materials Science
Background:
- Supercontinuum generation is crucial for various optical applications.
- Tellurite glasses offer unique nonlinear optical properties for extended spectral generation.
Purpose of the Study:
- To demonstrate broadband supercontinuum generation in a nanostructured tellurite graded-index multimode fiber.
- To investigate supercontinuum dynamics across different dispersion regimes.
- To explore the potential for high-power mid-infrared supercontinuum sources.
Main Methods:
- Fabrication of a nanostructured core tellurite graded-index multimode fiber.
- Experimental generation and characterization of supercontinuum light.
- Numerical simulations using the (3+1)D generalized nonlinear Schrödinger equation.
Main Results:
- Achieved broadband supercontinuum generation spanning from 790 to 2900 nm.
- Observed near-single-mode spatial intensity distribution at high input energies.
- Validated experimental findings with numerical simulations.
Conclusions:
- Successfully generated a broadband supercontinuum in a novel tellurite fiber.
- Demonstrated the feasibility of using soft-glass fibers for high-power mid-infrared supercontinuum generation.
- Opened new possibilities for developing advanced optical sources.
