Minimizing bend loss by removing material inside the caustic in bent single-mode fibers
- 20 June 2006
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 45 (18) , 4219-4222
- https://doi.org/10.1364/ao.45.004219
Abstract
By removing the cladding on the outside of a bent single-mode optical fiber and exposing a surface at a radius smaller than that of the radiation caustic, the leaky nature of the propagating mode is almost suppressed, and bend loss is effectively eliminated. The practical realization of this effect is described, and a loop with a bend radius of 0.50 mm on standard telecommunications fiber is demonstrated with negligible loss.Keywords
This publication has 9 references indexed in Scilit:
- Low-loss singlemode waveguide and fibre bendsElectronics Letters, 2002
- Strength of silica optical fibers with micron size flawsJournal of Non-Crystalline Solids, 2001
- Low-loss transmission through tightly bent standard telecommunication fibersApplied Physics Letters, 2000
- Bend-radius reduction in planar waveguides usingUV post-tuningElectronics Letters, 1997
- Adiabaticity of miniature loops in tapered single-mode fibreElectronics Letters, 1992
- Fibre-optic micro-ring-resonator with 2 mm diameterElectronics Letters, 1989
- Optical fibre polishing with a motor-driven polishing wheelElectronics Letters, 1988
- Sharp bends with low losses in dielectric optical waveguidesApplied Optics, 1983
- Field deformation and loss caused by curvature of optical fibersJournal of the Optical Society of America, 1976