Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Design of photonic crystal waveguides for evanescent coupling to optical fiber tapers and integration with high-Q cavities

Not Accessible

Your library or personal account may give you access

Abstract

We describe a novel scheme based on evanescent guided-wave coupling for optically interfacing between conventional fiber-optic and planar photonic crystal devices such as waveguides and resonant cavities. By considering the band structure of bulk photonic crystal slabs, we analyze the k space properties of a linear defect waveguide and establish a set of design rules to ensure efficient evanescent coupling with optical fiber tapers. These rules are used to design a waveguide in a square-lattice photonic crystal. The coupling efficiency is calculated with a coupled-mode theory incorporating the finite-difference time-domain-calculated uncoupled modes of the fiber taper and photonic crystal waveguide. On the basis of this coupled-mode theory, 95% power transfer from the fiber taper to the photonic crystal waveguide is possible over a coupling length of 80 lattice periods and with a bandwidth of 1.5% of the center wavelength. The integration of this waveguide with a photonic crystal defect resonant cavity is also presented, thus showing the usefulness of the combined fiber taper and photonic crystal waveguide system for efficient, optical fiber-based probing of optical elements based on planar photonic crystal technologies.

© 2003 Optical Society of America

Full Article  |  PDF Article
More Like This
Taper structures for coupling into photonic crystal slab waveguides

Peter Bienstman, Solomon Assefa, Steven G. Johnson, John D. Joannopoulos, Gale S. Petrich, and Leslie A. Kolodziejski
J. Opt. Soc. Am. B 20(9) 1817-1821 (2003)

Fourier space design of high-Q cavities in standard and compressed hexagonal lattice photonic crystals

Kartik Srinivasan and Oskar Painter
Opt. Express 11(6) 579-593 (2003)

Coupling of point-defect microcavities in two-dimensional photonic-crystal slabs

Thomas D. Happ, Martin Kamp, Alfred Forchel, Anatolii V. Bazhenov, Ilja I. Tartakovskii, Alexander Gorbunov, and Vladimir D. Kulakovskii
J. Opt. Soc. Am. B 20(2) 373-378 (2003)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved