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Opt Express. 2010 Jan 4;18(1):378-85. doi: 10.1364/OE.18.000378.

Polymeric waveguides with embedded micro-mirrors formed by Metallic Hard Mold.

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  • 1Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, USA.


In this paper, we presented fabrication of nickel based metal mold with 45 degrees tilted surfaces on both ends of the channel waveguide through electroplating process. To obtain a precise 45 degrees tilted angle, a 50microm thick SU-8 layer was UV exposed under de-ionized water, with repeatable error control of 0.5 degrees . The polymeric waveguide array with 45 degrees micro-mirrors, which is formed by a UV imprinting method with the fabricated metallic mold, shows total insertion losses around 4dB, propagation loss around 0.18dB/cm and 75% coupling efficiency.

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