Referenced Items are not available for this document.
Propagation properties of a linearly tapered parabolic-index dielectric cylinder are studied using a ray-optics approach. Analytical solutions for trajectories of skew rays with arbitrary initial conditions are obtained for tapers with small slope and small index variations over transverse dimensions. Conditions for an arbitrary ray to remain bound to the core of the taper are derived. Applications of these tapered lenses for coupling of light sources to fibers, for beam expanding/refocusing in microoptics devices, and for splicing two fibers of different core sizes are addressed, Power coupling efficiency for illumination from both Lambertian and narrow-beam light sources are calculated. Improvement in coupling efficiency, when taper is are used to couple power from directed-beam sources to optical fibers, is demonstrated. Radiation losses when a taper is used as a transition element between two fibers of different core radii are evaluated. Plots of skew-ray paths, illustrating the gradual concentration of power as light travels toward the smaller end of the taper, are also presented
Published in:
Quantum Electronics, IEEE Journal of
(Volume:33
,
Issue:
12
)
Date of Publication: Dec 1997
- Page(s):
- 2159 - 2166
- ISSN :
- 0018-9197
- INSPEC Accession Number:
- 5783565
- Digital Object Identifier :
- 10.1109/3.644096
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Dec 1997
- Sponsored by :
- IEEE Photonics Society
About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.
