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Proceedings Paper

Design and fabrication of microlens array for VCSEL to fiber coupling
Author(s): Seok-min Kim; Hongmin Kim; Jiseok Lim; Jeongwon Han; Shinill Kang
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Paper Abstract

The microlens array is often used for increasing coupling efficiency in vertical cavity surface emitting lasers (VCSELs) to fiber coupling system. Among the various methods to couple VCSEL module with microlenses, a monolithic lithography integration is regarded as better candidate because the process is simple and suitable for mass production. In addition, one can avoid additional assembly process. In the present study, a microlens array with a lens diameter of 40mm and focal length of 150mm was designed to couple a single mode VCSEL array and optical fibers, and tolerance analysis was carried out. A microlens array for VCSEL to fiber coupling was integrated by a UV-transparent mold and a monolithic lithography integration system which utilizes micro UV-molding. Finally, the geometrical properties of the integrated microlens array and the insertion loss of VCSEL to fiber coupling was measured and analyzed.

Paper Details

Date Published: 2 May 2005
PDF: 4 pages
Proc. SPIE 10315, Optifab 2005: Technical Digest, 103150S (2 May 2005); doi: 10.1117/12.605942
Show Author Affiliations
Seok-min Kim, Yonsei Univ. (South Korea)
Hongmin Kim, Yonsei Univ. (South Korea)
Jiseok Lim, Yonsei Univ. (South Korea)
Jeongwon Han, Yonsei Univ. (South Korea)
Shinill Kang, Yonsei Univ. (South Korea)

Published in SPIE Proceedings Vol. 10315:
Optifab 2005: Technical Digest
Robert E. Fischer; Masahide Katsuki; Matthias Pfaff; Kathleen A. Richardson, Editor(s)

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