Journal
OPTICAL MATERIALS EXPRESS
Volume 7, Issue 4, Pages 1343-1350Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.7.001343
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Funding
- DGAPA-UNAM PAPIIT projects [TA100315, IT101215, IN116914]
- CONACyT project [246988]
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A simple method for manufacturing centimeter-long all-PDMS embedded and rib microwaveguides is presented. It allows for the fabrication of centimeter-long micromolds by direct laser ablation of a desired waveguide pattern inside an acrylic sheet to create a pattern which is then transferred to a poly-dimethylsiloxane ( PDMS) layer using soft-lithography. A refractive index difference between the core and cladding of 1.3x10(-3) was achieved by controlling the PDMS curing and linear attenuation of 1.27 dB/cm for embedded and 2.36 dB/cm for a rib waveguide, similar to other techniques. Finally, a beamsplitter was fabricated to demonstrate that our low-cost process is suitable to integrate waveguide devices on lab on chip platforms. (C) 2017 Optical Society of America
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