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Proceedings Paper

Emission and optical properties of Si slot Er_xY_2-xSiO_5 waveguides
Author(s): Hideo Isshiki; Zul Izwan Bin Zulkefli; Takayuki Nakajima; Takuya Sato; Tadamasa Kimura
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Paper Abstract

Strong optical confinement to the low-index slot, such as ErxY2-xSiO5, is expected for guided TM mode. The confinement effect leads to modification of the optical mode density, resulting in the enhancement of radiative transition. We have fabricated slab Si-slot waveguides with Er2SiO5 slot layers in order to demonstrate the dependence of radiative emission on the guided waveguide modes. The PL fine structure particular to Er2SiO5 crystal has been observed through the waveguide structure. We confirmed the enhancement of the TM mode edge emission, and the intensity was about two times higher than that of TE mode.

Paper Details

Date Published: 20 November 2012
PDF: 6 pages
Proc. SPIE 8564, Nanophotonics and Micro/Nano Optics, 856404 (20 November 2012); doi: 10.1117/12.2001322
Show Author Affiliations
Hideo Isshiki, The Univ. of Electro-Communications (Japan)
Zul Izwan Bin Zulkefli, The Univ. of Electro-Communications (Japan)
Takayuki Nakajima, The Univ. of Electro-Communications (Japan)
Takuya Sato, The Univ. of Electro-Communications (Japan)
Tadamasa Kimura, The Univ. of Electro-Communications (Japan)

Published in SPIE Proceedings Vol. 8564:
Nanophotonics and Micro/Nano Optics
Zhiping Zhou; Kazumi Wada, Editor(s)

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