22 October 2010 Polymer PSQ-L notch filter fabricated by simple nanoimprint process
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Abstract
Polymers are emerging as an important material in the field of integrated optics. In this paper, we propose a simple method to fabricate polymer waveguides by using a novel polymer PSQ-L. The high index polymer PSQ-LH is used as a core material and the low index polymer PSQ-LL is used as a cladding material. The waveguide circuits are replicated by using a UV-based soft lithography process. Unlike in conventional imprint processes, the imprint step for structuring is done first on the cladding layer rather than on the core layer and is followed by a spin-coating step to fill the imprinted features with core layer material. The all-polymer microring resonators are fabricated by this method. The coupling efficiency between the straight waveguides and the ring is adjusted by controlling the gap distance between the straight waveguides and the ring. About 20dB extinction ratio and a high Q factor of 3.4×104 is obtained for critically coupled PSQ-L ring resonator.
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Jie Teng, Jie Teng, Xiuyou Han, Xiuyou Han, Mingshan Zhao, Mingshan Zhao, } "Polymer PSQ-L notch filter fabricated by simple nanoimprint process", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76580F (22 October 2010); doi: 10.1117/12.867977; https://doi.org/10.1117/12.867977
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