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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 18 — Jun. 20, 2011
  • pp: 2964–2972

Ion-exchanged silica-on-silicon structured channel erbium-doped waveguide amplifiers

Zian He, Yigang Li, Yingfeng Li, Yanwu Zhang, Liying Liu, and Lei Xu  »View Author Affiliations

Applied Optics, Vol. 50, Issue 18, pp. 2964-2972 (2011)

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Silica-on-silicon structured channel erbium-doped waveguide amplifiers (EDWAs) were fabricated by a combination of the ion-exchange and sol-gel techniques. A small signal fiber-device-fiber net gain of 0.5 dB at 1531 nm was obtained for a 4 cm long EDWA with an optimized waveguide structure. The low noise figure of 4.0 dB was also achieved. Samples of different waveguide structures and rare-earth ion doping levels were fabricated to compare the EDWA gain properties. The results demonstrate that a better gain spectrum can be obtained by maximizing the distribution overlap of pump and signal mode intensity. The gain performance can be further improved by reducing upconversion efficiency of the EDWA. This work demonstrates that the ion-exchanged silica-on-silicon waveguide structure is an alternative approach for EDWA fabrication.

© 2011 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(160.5690) Materials : Rare-earth-doped materials
(160.6060) Materials : Solgel
(230.7380) Optical devices : Waveguides, channeled
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Integrated Optics

Original Manuscript: January 6, 2011
Manuscript Accepted: April 4, 2011
Published: June 14, 2011

Zian He, Yigang Li, Yingfeng Li, Yanwu Zhang, Liying Liu, and Lei Xu, "Ion-exchanged silica-on-silicon structured channel erbium-doped waveguide amplifiers," Appl. Opt. 50, 2964-2972 (2011)

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