Low-loss silicon nitrite waveguides in polymer

Ziyang Zhang; Dongliang Liu; Norbert Keil; Norbert Grote

doi:10.1117/12.2017485

22 May 2013 Low-loss silicon nitrite waveguides in polymer

Ziyang Zhang, Dongliang Liu, Norbert Keil, Norbert Grote

Proceedings Volume 8767, Integrated Photonics: Materials, Devices, and Applications II; 87670U (2013) https://doi.org/10.1117/12.2017485
Event: SPIE Microtechnologies, 2013, Grenoble, France

Abstract

Recent progress of low-loss silicon nitride waveguide in polymer is presented. The fabrication technology requires only low temperature (<200°C) processes and standard photolithography. These waveguides feature a large geometric aspect ratio, resulting in a strong waveguide birefringence. For the TM mode an average propagation loss of ~ 0.72 dB/cm is measured, while for the TE mode the value is ~ 0.96 dB/cm. Also demonstrated are uniform Bragg-grating filters and sampled grating filters. Since the waveguide modes are weakly guided and the majority of light field distributes in the polymer cladding, various optical properties of the polymer materials can be exploited. A thermally tunable waveguide Bragg grating is thus demonstrated, with wavelength tuning range above 57 nm for the TM mode and 49 nm for the TE mode, at a tuning power of ~ 220 mW.

Citation Download Citation

Ziyang Zhang, Dongliang Liu, Norbert Keil, and Norbert Grote "Low-loss silicon nitrite waveguides in polymer", Proc. SPIE 8767, Integrated Photonics: Materials, Devices, and Applications II, 87670U (22 May 2013); https://doi.org/10.1117/12.2017485

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