High numerical aperture in multimode microstructured optical fibers

• Published in: Applied optics (2004) Vol. 43; no. 33; p. 6191
• Main Author: Issa, Nader A
• Format: Journal Article
• Language: English
• Published: United States 20.11.2004

Microstructured or "air-clad" fibers, with air holes surrounding a large core, have recently demonstrated much wider light-acceptance angles than conventional fibers. An original and accurate method is presented for determining the numerical aperture of such fibers using leaky modes. The d...