Spotsize contraction in standard single-mode fibers by use of a GI-fiber tip with a high focusing parameter
- 1 December 1998
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 10 (12), 1757-1759
- https://doi.org/10.1109/68.730493
Abstract
A spotsize reducer for single-mode fibers (SMFs) was fabricated by use of the quarter-pitch length of a parabolic-index fiber tip having a high focusing parameter. The modal-field diameter of a standard SMF at a wavelength of 1.55 /spl mu/m has been reduced from 10.4 to 5.8 /spl mu/m, with the use of the tip. The reducer appears promising for low-loss coupling between standard SMFs and various waveguides, such as dispersion compensated fibers, erbium-doped fibers, and planar waveguides.Keywords
This publication has 9 references indexed in Scilit:
- A lensed-fiber coupling scheme utilizing a graded-index fiber and a hemispherically ended coreless fiber tipJournal of Lightwave Technology, 1997
- New mode-field conversion technique in optical fiber using thermal relaxation of residual stressPublished by Optica Publishing Group ,1993
- Beam expanding fiber using thermal diffusion of the dopantJournal of Lightwave Technology, 1990
- Analysis and evaluation of graded-index fiber lensesJournal of Lightwave Technology, 1987
- Optical fiber tapers--A novel approach to self-aligned beam expansion and single-mode hardwareJournal of Lightwave Technology, 1987
- Constraints for fundamental-mode spot size for broadband dispersion-compensated single-mode fibresElectronics Letters, 1983
- Coupling Characteristics Between Single-Mode Fiber and Square Law MediumIEEE Transactions on Microwave Theory and Techniques, 1982
- Light propagation in graded-index optical fibersApplied Optics, 1978
- On the Propagation of Gaussian Beams of Light Through Lenslike Media Including those with a Loss or Gain VariationApplied Optics, 1965