Coupling performance and fabrication method of a waveguide grating coupler with non-uniform duty ratio

Jeong Su Yang; Jun-Ho Sung; Beom-hoan O; Seung Gol Lee; El-Hang Lee

doi:10.1117/12.762874

12 February 2008 Coupling performance and fabrication method of a waveguide grating coupler with non-uniform duty ratio

Jeong Su Yang, Jun-Ho Sung, Beom-hoan O, Seung Gol Lee, El-Hang Lee

Proceedings Volume 6897, Optoelectronic Integrated Circuits X; 68970B (2008) https://doi.org/10.1117/12.762874
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We proposed a novel grating design of an out-of-plane coupler with non-uniform duty ratio operating at a wavelength of 1.55 μm for the highly efficient coupling from a waveguide to an optical fiber. In order to evaluate the coupling performance, the diffracted output beam profile and the focusing performance due to the variations of duty ratio configuration were investigated by a 2D Bloch-wave analysis. In addition, a simple fabrication method was proposed to realize the grating by the Near-Field Holographic lithography system with variable aperture unit.

Citation Download Citation

Jeong Su Yang, Jun-Ho Sung, Beom-hoan O, Seung Gol Lee, and El-Hang Lee "Coupling performance and fabrication method of a waveguide grating coupler with non-uniform duty ratio", Proc. SPIE 6897, Optoelectronic Integrated Circuits X, 68970B (12 February 2008); https://doi.org/10.1117/12.762874

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