Abstract

A simple and convenient method was proposed for the calculation of transmission loss in a circular hollow waveguide. The method is based on a simple ray theory and is applicable to multimode transmission of incoherent light. In order to confirm the validity of the method, spectral losses of various kinds of hollow waveguide were measured and compared with the theoretical values. For a silica waveguide, good coincidence was obtained between calculated and measured values, whereas, for metallic waveguides, surface irregularities must be taken into account for prediction of optical losses.

© 1989 Optical Society of America

Bending losses of incoherent light in circular hollow waveguides

Mitsunori Saito, Yuji Matsuura, Masashi Kawamura, and Mitsunobu Miyagi
J. Opt. Soc. Am. A 7(11) 2063-2068 (1990)

Loss characteristics of infrared hollow waveguides in multimode transmission

Mitsunori Saito, Shin-ya Sato, and Mitsunobu Miyagi
J. Opt. Soc. Am. A 10(2) 277-282 (1993)

Spectral bending losses of incoherent IR light in circular waveguides

Yuji Matsuura, Masashi Kawamura, Mitsunobu Miyagi, and Hitoshi Ishikawa
Appl. Opt. 29(15) 2214-2216 (1990)

Ray model for transmission of metallic–dielectric hollow bent cylindrical waveguides

D. Mendlovic, E. Goldenberg, S. Ruschin, J. Dror, and N. Croitoru
Appl. Opt. 28(4) 708-712 (1989)

Waveguide losses in sharply bent circular hollow waveguides

Mitsunobu Miyagi and Satoru Karasawa
Appl. Opt. 29(3) 367-370 (1990)