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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 9 — Sep. 1, 2014
  • pp: 2021–2028

Potential for large optical gain improvement of erbium-doped slot waveguide amplifiers in silicon photonics

Samuel Serna, Weiwei Zhang, Xavier Leroux, Dingshan Gao, Daming Zhang, Laurent Vivien, and Eric Cassan  »View Author Affiliations


JOSA B, Vol. 31, Issue 9, pp. 2021-2028 (2014)
http://dx.doi.org/10.1364/JOSAB.31.002021


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Abstract

The potential for on-chip optical amplification at λs=1530nm in silicon photonics using erbium-doped rich polymers integrated in silicon-slot waveguides is investigated by using a four-level spectroscopic model and a pumping wavelength of 1.48 μm. It is shown that the key parameter driving the whole amplification efficiency is the slot waveguide linear loss level, while optimization of the hollow core waveguide cross section leads to a slot width around 130 nm. Our investigations show that an on-chip optical gain of about 10 dB can be obtained with 7dB/cm loss slot waveguides. Such a propagation loss is directly sustained by experimental results obtained for photonic structures fabricated using silicon technology. Due to the likelihood of improved technological processes in the near future, the slot waveguide loss level was swept in the 310dB/cm range, showing that on-chip optical gain up to 30 dB can be seriously envisaged for slot waveguides with optimized optical losses around 3dB/cm.

© 2014 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.7370) Optical devices : Waveguides
(230.4480) Optical devices : Optical amplifiers

ToC Category:
Integrated Optics

History
Original Manuscript: April 24, 2014
Revised Manuscript: June 20, 2014
Manuscript Accepted: June 21, 2014
Published: August 5, 2014

Citation
Samuel Serna, Weiwei Zhang, Xavier Leroux, Dingshan Gao, Daming Zhang, Laurent Vivien, and Eric Cassan, "Potential for large optical gain improvement of erbium-doped slot waveguide amplifiers in silicon photonics," J. Opt. Soc. Am. B 31, 2021-2028 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-9-2021

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