Back-reflexion from fused biconic couplers

Author

Vance, Roderick W C ; Love, John D.

Author_Institution

Opt. Sci. Centre, Australian Nat. Univ., Canberra, ACT, Australia

Volume

13

Issue

11

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2282

Lastpage

2289

Abstract

Several theories are investigated to account for the origin of back-reflexions from fused biconic couplers. Amongst the effects causing such variation are those considered in this paper, namely, tapering, surface roughness on the cladding-air interface, fiber bends and twists and, finally, stress arising from bending and packaging. The basic investigative tool is the coupled local mode equations solution for the coupling between the forward- and backward-propagating modes arising in response to these effects. Theoretical analysis shows the stress optic effect to be the most likely reflexion origin and experimental results support this assertion, as well as ruling out tapering and surface roughness as likely causes

Keywords

bending; light reflection; optical fibre couplers; optical fibre fabrication; optical fibre theory; optical fibres; packaging; piezoreflectance; surface topography; back-reflexion; backward-propagating modes; bending; cladding-air interface; coupled local mode equations solution; fiber bends; forward-propagating modes; fused biconic couplers; packaging; reflected power; stress; stress optic effect; surface roughness; tapering; twists; Australia; Equations; Optical fiber couplers; Optical refraction; Optical variables control; Optical waveguides; Packaging; Rough surfaces; Stress; Surface roughness;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.482049

Filename

482049