Improvement on asymmetry of low-loss waveguides written in pure silica glass by femtosecond laser pulses

Takeshi Fukuda; Shimon Ishikawa; Tomoko Fujii; Ken Sakuma; Hideyuki Hosoya

doi:10.1117/12.520333

30 April 2004 Improvement on asymmetry of low-loss waveguides written in pure silica glass by femtosecond laser pulses

Takeshi Fukuda, Shimon Ishikawa, Tomoko Fujii, Ken Sakuma, Hideyuki Hosoya

Proceedings Volume 5279, Optical Fibers and Passive Components; (2004) https://doi.org/10.1117/12.520333
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

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.

Citation Download Citation

Takeshi Fukuda, Shimon Ishikawa, Tomoko Fujii, Ken Sakuma, and Hideyuki Hosoya "Improvement on asymmetry of low-loss waveguides written in pure silica glass by femtosecond laser pulses", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); https://doi.org/10.1117/12.520333

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