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Proceedings Paper

1x8 single-mode fused optical fiber couplers
Author(s): Damien Stryckman; Suzanne Lacroix; Xavier Daxhelet; Denis Ricard; Jacques Bures; Francois Gonthier
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Paper Abstract

We present various fabrication techniques for 1 by 8 single- mode fiber couplers. Single-mode couplers are used for signal distribution in optical networks. Traditionally, for division of eight or more, several couplers are cascaded. This constraints increases the length as well as the production cost of the component. Our work demonstrates that the fusion/stretching process for making couplers can be applied to couplers containing up to eight fibers. Three different techniques have been studied to produce these couplers. Through one technique, uniformity of power was obtained at 1.55 micrometers . Typical losses are less than 1 dB. A theoretical analysis of the structure shows the coupling of eight supermodes. However, if transversal symmetry is respected, only two of these supermodes will interact in the power transfer between the fibers. The control of the interaction of these two supermodes permits a control of the wavelength dependence of the component. These phenomena are analyzed and experimental results are presented. The new 1 by 8 coupler is a compact component of less than 10 cm that integrates itself efficiently within the networks.

Paper Details

Date Published: 23 January 1997
PDF: 8 pages
Proc. SPIE 2997, Integrated Optics Devices: Potential for Commercialization, (23 January 1997); doi: 10.1117/12.264162
Show Author Affiliations
Damien Stryckman, Ecole Polytechnique de Montreal (Canada)
Suzanne Lacroix, Ecole Polytechnique de Montreal (Canada)
Xavier Daxhelet, Ecole Polytechnique de Montreal (Canada)
Denis Ricard, Ecole Polytechnique de Montreal (Canada)
Jacques Bures, Ecole Polytechnique de Montreal (Canada)
Francois Gonthier, Canstar (Canada)

Published in SPIE Proceedings Vol. 2997:
Integrated Optics Devices: Potential for Commercialization
S. Iraj Najafi; Mario Nicola Armenise, Editor(s)

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