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Spectroscopy, modeling, and performance of Erbium-Doped Ta2O5 waveguide amplifiers

Subramanian, Ananth Z., Murugan, G.Senthil, Zervas, Michalis N. and Wilkinson, James S. (2012) Spectroscopy, modeling, and performance of Erbium-Doped Ta2O5 waveguide amplifiers Journal of Lightwave Technology, 30, (10), pp. 1455-1462.

Record type: Article


The design, fabrication, spectroscopic characterization, and performance of an Er:Ta2O5 rib waveguide amplifier is described. Rib waveguides with low loss (< 0.65 dB/cm at 1600 nm) were obtained. Their absorption spectrum was measured and McCumber theory was employed to obtain the emission spectrum, leading to the absorption and emission cross sections. Numerical modeling for gain optimization in Er:Ta2O5 waveguide amplifiers is presented, employing the experimentally determined parameters. Finally, net optical gain of 2.1 dB/cm at 1531.5 nm is demonstrated in a 2.3 cm long Er:Ta2O5 rib waveguide when pumped with 977 nm laser diode, and compared with simulations to deduce the extent of upconversion.

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Published date: 15 May 2012
Keywords: erbium, integrated optics, optical amplifiers, rib waveguides, waveguide components
Organisations: Optoelectronics Research Centre


Local EPrints ID: 337292
ISSN: 0733-8724
PURE UUID: e7fa0dd7-5600-4bae-96b0-abe4e3d441b3
ORCID for G.Senthil Murugan: ORCID iD
ORCID for James S. Wilkinson: ORCID iD

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Date deposited: 23 Apr 2012 13:50
Last modified: 11 Aug 2017 09:40

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Author: Ananth Z. Subramanian
Author: Michalis N. Zervas

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