Spatial beam reshaping and large-band nonlinear conversion in rectangular-core phosphate glass fibers

Clément Strutynski (1) , Vincent Couderc (2) , Tigran Mansuryan (2) , Giorgio Santarelli (3) , Philippe Thomas (2) , Sylvain Danto (1) , Thierry Cardinal (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 XLIM - XLIM
3 LP2N - Laboratoire Photonique, Numérique et Nanosciences

Here we present the ability of Nd 3+-doped zinc-phosphate glasses to be shaped into rectangular core fibers. At first, the physico-chemical properties of the developed P 2 O 5-based materials are investigated for different concentrations of neodymium oxide and core and cladding glass compositions are selected for further fiber development. A modified stack-anddraw technique is used to produce multimode large rectangular-core optical fibers. Self-guided nonlinear effects acting as spatial beam reshaping processes occurring in these newly-developed photonic structures lead to the generation of spectral broadenings in the visible and near-infrared spectral domains.

Mots clés: Phosphate glasses; Neodymium; Optical fibers; Self-focusing; Super-continuum; Phosphate glasses

Domaines: Matériaux; Optique [physics.optics]

Clément Strutynski, Vincent Couderc, Tigran Mansuryan, Giorgio Santarelli, Philippe Thomas, et al.. Spatial beam reshaping and large-band nonlinear conversion in rectangular-core phosphate glass fibers. Frontiers of Optoelectronics, 2022, 15 (1), pp.4. ⟨10.1007/s12200-022-00007-6⟩. ⟨hal-03623471⟩