Chirped waveguide gratings for low-cost silicon photonic wire packaging and other applications

C. Li; X. Chen; Z. Sheng; H. K. Tsang

doi:10.1117/12.810005

10 February 2009 Chirped waveguide gratings for low-cost silicon photonic wire packaging and other applications

C. Li, X. Chen, Z. Sheng, H. K. Tsang

Proceedings Volume 7219, Optoelectronic Integrated Circuits XI; 721903 (2009) https://doi.org/10.1117/12.810005
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We review our recent work on chirped waveguide gratings for efficient coupling between standard single mode optical fibers and silicon photonic wire waveguides. The use of a linear chirp in grating period reduces the second order Bragg reflection from the waveguide gratings and increases the coupling efficiency for perfectly vertical optical fibers. Measurement results obtained from devices fabricated using deep UV lithography yielded coupling efficiencies of over 34%. Techniques to further improve the coupling efficiency will be discussed. The use of chirped waveguide gratings for low cost photonic packaging and the application of waveguide gratings for splitting/combining light will also be presented.

Citation Download Citation

C. Li, X. Chen, Z. Sheng, and H. K. Tsang "Chirped waveguide gratings for low-cost silicon photonic wire packaging and other applications", Proc. SPIE 7219, Optoelectronic Integrated Circuits XI, 721903 (10 February 2009); https://doi.org/10.1117/12.810005

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