Design and simulation of apodized SOI fibre-to-chip coupler by subwavelength structure

Jozef Chovan; Anton Kuzma; František Uherek; Dana Seyringer

doi:10.1117/12.2036067

11 October 2013 Design and simulation of apodized SOI fibre-to-chip coupler by subwavelength structure

Jozef Chovan, Anton Kuzma, František Uherek, Dana Seyringer

Proceedings Volume 8915, Photonics North 2013; 89150P (2013) https://doi.org/10.1117/12.2036067
Event: Photonics North 2013, 2013, Ottawa, Canada

Abstract

We report on a design and simulation of silicon on insulator apodized surface diffraction grating fiber to chip coupler by sub-wavelength structure which is compatible with 193 nm laser DUV lithography. The structure of designed fiber to chip coupler consists of two parts: a relatively large tapered segment and a segment with the surface diffraction grating having sub-wavelength structure. The first segment adjusts cross-section of silicon on insulator wire single mode waveguide to standard single mode fiber diameter and the second one is designed for vertical coupling to the fiber. Four types of surface diffraction grating apodization by sub-wavelength structure are designed and simulated. The simulation of the fiber-to-chip coupler is performed by FDTD simulation method. The simulation results of coupling effects for each apodization of surface diffraction grating are evaluated and compared with each other.

Citation Download Citation

Jozef Chovan, Anton Kuzma, František Uherek, and Dana Seyringer "Design and simulation of apodized SOI fibre-to-chip coupler by subwavelength structure", Proc. SPIE 8915, Photonics North 2013, 89150P (11 October 2013); https://doi.org/10.1117/12.2036067

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