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Proceedings Paper

New type of low-loss SiO2 Y-branch waveguide
Author(s): Baoxue Chen; Yifang Yuan; Mamoru Iso
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Paper Abstract

A novel Y-branch waveguide structure, in which a transitional guide is embedded between an incident channel and output branches, is presented. The transitional guide is used to improve the mode field matching between both waves supported by the incident and output waveguides. Numerical simulations show that this geometry can minimize the junction loss to 0.041 dB at 1310 nm and 0.052 dB at 1550 nm wavelength, respectively. Silica samples based on the design are fabricated by PECVD. Determination shows that the samples exhibit very low junction loss of about 0.08 dB and 0.09 dB at the two wavelengths.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408325
Show Author Affiliations
Baoxue Chen, Univ. of Shanghai for Science and Technology (China)
Yifang Yuan, Univ. of Shanghai for Science and Technology (China)
Mamoru Iso, Tokyo Univ. of Agriculture and Technology (Japan)


Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications
Junhao Chu; Pulin Liu; Yong Chang, Editor(s)

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