Design and analysis of dual-resonant filters in visible and infra-red region based on polymer LPWG

Mukesh Sharma; Aniruddha Singh Kushwaha; Suchandan Pal

doi:10.1117/12.2012112

28 January 2013 Design and analysis of dual-resonant filters in visible and infra-red region based on polymer LPWG

Mukesh Sharma, Aniruddha Singh Kushwaha, Suchandan Pal

Proceedings Volume 8760, International Conference on Communication and Electronics System Design; 876013 (2013) https://doi.org/10.1117/12.2012112
Event: International Conference on Communication and Electronics System Design, 2013, Jaipur, India

Abstract

Long-period waveguide gratings (LPWGs), by using a SU-8 polymer-based channel waveguide along with NOA61 optical epoxy coated upper- and lower-cladding, are designed and theoretical analyzed. Grating period of ~ 68μm is considered with optimized grating tooth-heights, so that the transmission spectra of the gratings show strong rejection bands both at visible (450 – 460 nm) and infrared (1530 – 1540 nm) wavelength regions. Phase-matching graphs are studied in order to observe the change in resonance wavelength of the grating with the variation of waveguide parameters. LPWG-based band pass filter are also designed and analyzed by considering the same set of polymer materials. Further, temperature sensitivity of these LPWGs is analyzed theoretically. These types of waveguide gratingbased filters can widely be used for visible and infrared wavelength sensing applications.

Citation Download Citation

Mukesh Sharma, Aniruddha Singh Kushwaha, and Suchandan Pal "Design and analysis of dual-resonant filters in visible and infra-red region based on polymer LPWG", Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876013 (28 January 2013); https://doi.org/10.1117/12.2012112

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KEYWORDS

Polymers

Waveguides

Linear filtering

Optical filters

Visible radiation

Cladding

Optical design

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