EFFECT OF FIELD REGENERATION ON THE TEM00 TRANSMISSION CHARACTERISTICS OF A CIRCULAR-SECTION WAVE-GUIDE

被引：13

作者：

JENKINS, RM

DEVEREUX, RWJ

机构：

[1] Defence Research Agency, Electronics Division, Royal Signals and Radar Establishment, Worcestershire, WR14 3PS, St. Andrews Road

来源：

APPLIED OPTICS | 1992年 / 31卷 / 24期

关键词：

FIELD REGENERATION PHENOMENA; CIRCULAR-CROSS-SECTION HOLLOW SILICA WAVE-GUIDE; PERIODIC TRANSMISSION CHARACTERISTICS;

D O I：

10.1364/AO.31.005086

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The transmission of a 10.6-mu-m TEM00 beam through a hollow circular-cross-section waveguide is modeled in terms of the excitation and propagation of the two lowest-order circularly symmetric EH1n modes. At points along the guide axis where the modes are in phase the TEM00 input field is shown to be regenerated, but midway between these points, transverse-mode profiles that have a doughnut shape are produced. It is proposed that these dramatic field variations should cause variations in the effective attenuation coefficient along the length of the waveguide. The first direct experimental measurements to our knowledge of the guide-length-dependent attenuation characteristics of a 1.0-mm-bore hollow silica waveguide support this hypothesis by revealing a strong periodic component in addition to the anticipated exponential decay.

引用

页码：5086 / 5091

页数：6

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