Abstract

A general method is presented of evaluating bending losses in hollow-core waveguides; analytic expressions are obtained for metallic hollow, dielectric hollow, and tube leaky waveguides on the basis of the 2-D slab waveguide model. Numerical examples are given for waveguides made of different kinds of metals, oxide, and dielectric materials at 10.6 μm. It is shown that the dielectric tube leaky waveguide can be bent with a small bending radius compared with a metallic hollow waveguide when the guide material is appropriately selected.

© 1981 Optical Society of America

Losses and phase constant changes caused by bends in the general class of hollow waveguides for the infrared

Mitsunobu Miyagi and Shojiro Kawakami
Appl. Opt. 20(24) 4221-4226 (1981)

Mode-coupling analysis of bending losses in IR metallic waveguides

Michel E. Marhic
Appl. Opt. 20(19) 3436-3441 (1981)

Bent asymmetric dielectric slab waveguides: a detailed analysis

Yuetsu Takuma, Mitsunobu Miyagi, and Shojiro Kawakami
Appl. Opt. 20(13) 2291-2298 (1981)

Losses at corner bends in dielectric waveguides

H. F. Taylor
Appl. Opt. 16(3) 711-716 (1977)

New formalism of curvature losses of leaky modes in doubly clad slab waveguides

Mitsunobu Miyagi, Shuichi Matsuo, and Shigeo Nishida
J. Opt. Soc. Am. A 4(4) 678-682 (1987)