Plastic optical fiber coupler with high index contrast waveguide taper

Abang Annuar Ehsan, S. Shaari, M. K A Rahman

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A simple low-cost Y-branch plastic optical fiber (POF) coupler which can be assembled easily by the end users has been developed. The acrylic-based Y-Branch POF coupler consists of input POF fiber, a middle high index contrast waveguide taper and output POF fibers. The optical device is based on a 1 × 2 Y-branch coupler design with a middle high index contrast waveguide taper. Non- sequential ray tracing has been performed on the device giving an insertion loss of 4.68 dB and coupling ratio of 50: 50. The middle waveguide taper region is constructed on the acrylic block itself without using any additional optical waveguiding medium injected into the engraved taper region. Fabrication of the devices is done by producing the device structures on an acrylic block using high speed CNC machining tool. Input and output POF fibers are inserted in to this device structure in such a way that they are passively aligned to the middle waveguide taper structure. The first prototype device shows an insertion loss of 7.5 dB and a splitting ratio of 50: 50. A second prototype device which includes additional U-groove slots for the jacketed fibers shows an insertion loss of 5.9 dB and a splitting ratio of 50: 50.

Original languageEnglish
Pages (from-to)125-138
Number of pages14
JournalProgress In Electromagnetics Research C
Volume20
Publication statusPublished - 2011

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Plastic optical fibers
Waveguides
Insertion losses
Acrylics
Fibers
Ray tracing
Optical devices
Machining
Fabrication
Costs

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Plastic optical fiber coupler with high index contrast waveguide taper. / Ehsan, Abang Annuar; Shaari, S.; Rahman, M. K A.

In: Progress In Electromagnetics Research C, Vol. 20, 2011, p. 125-138.

Research output: Contribution to journalArticle

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