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Proceedings Paper

Shape optimization of asymmetric Y-junction for mode multiplexing in proton-exchange lithium niobate waveguides
Author(s): Xiuping Xie; Takashi Saida; Jie Huang; Martin M. Fejer
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Paper Abstract

We introduce and demonstrate a new design for mode multiplexing in proton-exchange lithium niobate waveguides using asymmetric Y-junctions. The coupling between the lowest two modes in the device is suppressed by modifying the Y-junction shape. Without increasing the device length, the mode contrast is enhanced by >3.4dB compared to conventional designs. The new design improves the performance of an important functional block in integrated optics.

Paper Details

Date Published: 31 March 2005
PDF: 7 pages
Proc. SPIE 5728, Integrated Optics: Devices, Materials, and Technologies IX, (31 March 2005); doi: 10.1117/12.593475
Show Author Affiliations
Xiuping Xie, Stanford Univ. (United States)
Takashi Saida, NTT Photonics Labs. (Japan)
Jie Huang, Stanford Univ. (United States)
Martin M. Fejer, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 5728:
Integrated Optics: Devices, Materials, and Technologies IX
Yakov Sidorin; Christoph A. Waechter, Editor(s)

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