Abstract
Adiabatically tapered holey fibers are shown to be potentially useful for guided-wave spot-size and numerical-aperture conversion. Conditions for adiabaticity and design guidelines are provided in terms of the effective-index model. We also present finite-difference time-domain calculations of downtapered holey fiber, showing that large spot-size conversion factors are obtainable with minimal loss by use of short, optimally shaped tapers.
Original language | English |
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Pages (from-to) | 1042-1044 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 26 |
Issue number | 14 |
DOIs | |
Publication status | Published - 15 Jul 2001 |
Externally published | Yes |