Abstract

Motivated by the recent observation of periodic filter characteristics of an oval-shaped microcavity, we study the possible interference of multiple beams in the far field of a laser-illuminated quadrupolar glass fiber. From numerical ray-tracing simulations we obtain the interference-relevant length-difference spectrum and compare it with data extracted from the experimental filter results. Our analysis reveals that different polygonal cavity modes that are refractively output coupled in the high-curvature region of the fiber contribute to the observed far-field interference.

© 2001 Optical Society of America

Multimode resonances in square-shaped optical microcavities

A. W. Poon, F. Courvoisier, and R. K. Chang
Opt. Lett. 26(9) 632-634 (2001)

Interrogation of fiber gratings by use of low-coherence spectral interferometry of noiselike pulses

Shay Keren and Moshe Horowitz
Opt. Lett. 26(6) 328-330 (2001)

Optimized absorption in a chaotic double-clad fiber amplifier

Valérie Doya, Olivier Legrand, and Fabrice Mortessagne
Opt. Lett. 26(12) 872-874 (2001)

Directional emission from whispering-gallery modes in deformed fused-silica microspheres

Scott Lacey and Hailin Wang
Opt. Lett. 26(24) 1943-1945 (2001)

Direct evidence of open ray orbits in a square two-dimensional resonator of dye-doped polymers

G. D. Chern, A. W. Poon, R. K. Chang, T. Ben-Messaoud, O. Alloschery, E. Toussaere, J. Zyss, and S.-Y. Kuo
Opt. Lett. 29(14) 1674-1676 (2004)