Coupling optical fibers to thin semiconductor waveguides

Goran Z. Masanovic; Vittorio M. N. Passaro; Graham T. Reed

doi:10.1117/12.479446

30 May 2003 Coupling optical fibers to thin semiconductor waveguides

Goran Z. Masanovic, Vittorio M. N. Passaro, Graham T. Reed

Proceedings Volume 4997, Photonics Packaging and Integration III; (2003) https://doi.org/10.1117/12.479446
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

We present a novel type of grating-assisted coupler for coupling light from an optical fibre to a thin semiconductor waveguide. The Dual Grating-Assisted Directional Coupler (DGADC) consists of two gratings, one thick waveguide with a refractive index similar to the refractive index of the fibre, a thin semiconductor waveguide and a layer with refractive index which is between that of the thick and thin waveguides. Specifically, a coupler in silicon on insulator (SO!) has been analysed. The maximum coupling efficiency for this coupler can approach 1 00%, while the minimum coupling length can be around 2mm.

Citation Download Citation

Goran Z. Masanovic, Vittorio M. N. Passaro, and Graham T. Reed "Coupling optical fibers to thin semiconductor waveguides", Proc. SPIE 4997, Photonics Packaging and Integration III, (30 May 2003); https://doi.org/10.1117/12.479446

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