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Title: Fabrication of single-mode Y-branch waveguides in photosensitive polymer with reduced Y-junction residue
Authors: Singhal, R.
Satyanarayan, M.N.
Pal, S.
Issue Date: 2012
Citation: Optik, 2012, Vol.123, 21, pp.1911-1914
Abstract: Single-mode small-core (?2 ?m 2 ?m) Y-branch waveguide structures in photosensitive polymer have been fabricated. Y-branch waveguides are designed by the beam propagation method and Y-branch waveguides are obtained on development after a cross-linkable negative tone epoxy SU-8 2002 polymer is exposed to UV through a photomask. Optical Adhesive NOA 61 is used as under- and over-clad. The fabrication process is optimized to avoid polymer residue at the Y-junction. The average insertion loss obtained for a 7.2 mm 1 2 device at chip-level is ?13 dB at 1550 nm. 2011 Elsevier GmbH.
Appears in Collections:1. Journal Articles

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