High NA focusing grating coupler using blue laser

Yeungjoon Sohn; Yongwoo Park; Dongwoo Suh; Hojun Ryu; Mun Cheol Paek

doi:10.1364/ODS.2003.TuE37

Optical Data Storage
OSA Technical Digest Series (Optica Publishing Group, 2003),
paper TuE37
•https://doi.org/10.1364/ODS.2003.TuE37

High NA focusing grating coupler using blue laser

Yeungjoon Sohn, Yongwoo Park, Dongwoo Suh, Hojun Ryu, and Mun Cheol Paek

Optical Data Storage 2003

Vancouver Canada
11–14 May 2003
ISBN: 1-55752-732-6

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Y. Sohn, Y. Park, D. Suh, H. Ryu, and M. C. Paek, "High NA focusing grating coupler using blue laser," in Optical Data Storage, OSA Technical Digest Series (Optica Publishing Group, 2003), paper TuE37.

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Abstract

A focusing grating coupler of a high NA (0.55) operating at the wavelength of 400 nm was characterized. The measured spot size was 0.45 µm that is 1.04 times the diffraction limit of the beam.

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