Fabrication of waveguide-fiber array couplers using laser-machined V-groove techniques in perspex substrates

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)421-424
Journal / PublicationMicrowave and Optical Technology Letters
Issue number12
Publication statusPublished - Dec 1989
Externally publishedYes


We report an inexpensive and versatile technique for coupling multichannel waveguides to a fiber array using V-grooves in perspex substrates that are accurately machined by a computer-controlled CO2 laser system. An excess loss of less than 1 dB could be achieved for coupling between 1 × 2, 1 × 3, and 1 × 4 branching circuits and an array of N-port fibers.