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Proceedings Paper

Fabrication of three-dimensional photonic devices using femtosecond laser pulses
Author(s): Ik-Bu Sohn; Man-Seop Lee; Sang-Man Lee; Jung-Sik Woo; Jung-Yong Jung
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Paper Abstract

Using tightly focused femtosecond laser pulses, we produced optical waveguide and devices in the transparent materials. This technique has the potential to generate not only channel waveguide but three-dimensional optical devices. In this paper, an optical splitter and U-grooves, which are used for fiber alignment, are simultaneously fabricated in a fused silica glass by using near-IR femtosecond laser pulses. The fiber aligned optical splitter has a low insertion loss, less than 4 dB, including intrinsic splitting loss of 3 dB and excess loss due to the passive alignment of a single-mode fiber. Finally, the utility of the femtosecond laser writing technique is demonstrated by fabricating gratings at the surface and inside the silica glass, respectively.

Paper Details

Date Published: 22 January 2005
PDF: 9 pages
Proc. SPIE 5715, Micromachining and Microfabrication Process Technology X, (22 January 2005); doi: 10.1117/12.588501
Show Author Affiliations
Ik-Bu Sohn, Information and Communications Univ. (South Korea)
Man-Seop Lee, Information and Communications Univ. (South Korea)
Sang-Man Lee, Phoco Co., Ltd. (South Korea)
Jung-Sik Woo, Phoco Co., Ltd. (South Korea)
Jung-Yong Jung, Phoco Co., Ltd. (South Korea)

Published in SPIE Proceedings Vol. 5715:
Micromachining and Microfabrication Process Technology X
Mary-Ann Maher; Harold D. Stewart, Editor(s)

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