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Proceedings Paper

Improvement on asymmetry of low-loss waveguides written in pure silica glass by femtosecond laser pulses
Author(s): Takeshi Fukuda; Shimon Ishikawa; Tomoko Fujii; Ken Sakuma; Hideyuki Hosoya
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Paper Abstract

Low-loss and symmetrical mode-field optical waveguides were directly written in a pure silica glass by nearinfrared femtosecond laser processing. By optimizing laser processing parameters, such as the pulse duration and the pulse energy of femtosecond laser pulses, we demonstrated the propagation-loss reduction and the mode- field diameter (MFD) aspect ratio improvement. We have achieved the propagation-loss of 0.10 dB/cm and the MFD aspect ratio of 1.0 at the wavelength of 1550 nm at the same time.

Paper Details

Date Published: 30 April 2004
PDF: 8 pages
Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); doi: 10.1117/12.520333
Show Author Affiliations
Takeshi Fukuda, Fujikura, Ltd. (Japan)
Shimon Ishikawa, Fujikura, Ltd. (Japan)
Tomoko Fujii, Fujikura, Ltd. (Japan)
Ken Sakuma, Fujikura, Ltd. (Japan)
Hideyuki Hosoya, Fujikura, Ltd. (Japan)

Published in SPIE Proceedings Vol. 5279:
Optical Fibers and Passive Components
Steven Shen; Shuisheng Jian; Katsunari Okamoto; Kenneth L. Walker, Editor(s)

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