All-Solid Single-Mode Bragg Fibers for Compact Fiber Devices

Silica-core Bragg fibers supporting the single HE
₁₁
mode are proposed for fiber devices including compact nonlinear devices and dispersion control components. Fibers are fabricated by forming a dielectric multilayer on the outside of a conventional single-mode fiber, which is partly redrawn to a small diameter. Bragg guidance over a broadband wavelength range and the mode profile that corresponds with the HE
₁₁
mode are observed