Fabrication of optical filters based on polymer asymmetric Bragg couplers.
نویسندگان
چکیده
In this work, we successfully developed a process to fabricate dual-channel polymeric waveguide filters based on an asymmetric Bragg coupler (ABC) using holographic interference techniques, soft lithography, and micro molding. At the cross- and self-reflection Bragg wavelengths, the transmission dips of approximately -16.4 and -11.5 dB relative to the 3 dB background insertion loss and the 3 dB transmission bandwidths of approximately 0.6 and 0.5 nm were obtained from an ABC-based filter. The transmission spectrum overlaps when the effective index difference between two single waveguides is less than 0.002.
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ورودعنوان ژورنال:
- Optics express
دوره 17 20 شماره
صفحات -
تاریخ انتشار 2009