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High optical gain in erbium-doped potassium double tungstate channel waveguide amplifiers

High optical gain in erbium-doped potassium double tungstate channel waveguide amplifiers
High optical gain in erbium-doped potassium double tungstate channel waveguide amplifiers

We report on the optical-gain properties of channel waveguides patterned into lattice-matched KGdxLuyEr1-x-y(WO4)2 layers grown onto undoped KY(WO4)2 substrates by liquid phase epitaxy. A systematic investigation of gain is performed for five different Er3+ concentrations in the range of 0.75 to 10at.% and different pump powers and signal wavelengths. In pump-probe-beam experiments, relative internal gain, i.e., signal enhancement minus absorption loss of light propagating in the channel waveguide, is experimentally demonstrated, with a maximum value of 12 ± 5 dB/cm for signals at the peak-emission wavelength of 1534.7 nm.

1094-4087
6260-6266
Vázquez-Córdova, Sergio A.
51b86280-0f98-4092-9a57-01146d11dae4
Aravazhi, Shanmugam
61e47688-9e2d-45b2-a9b3-1d6944cb6f67
Grivas, Christos
7f564818-0ac0-4127-82a7-22e87ac35f1a
Yong, Yean Sheng
ae552d9e-bc9d-4d93-9321-505f3206dfa8
García-Blanco, Sonia M.
fceca377-1318-4554-af33-a89fd234b2c0
Herek, Jennifer L.
ff7fb89f-8999-46f0-8c51-83cbaf5a9865
Pollnau, Markus
d09faeb8-2a90-4088-a8b6-49ae165755ee
Vázquez-Córdova, Sergio A.
51b86280-0f98-4092-9a57-01146d11dae4
Aravazhi, Shanmugam
61e47688-9e2d-45b2-a9b3-1d6944cb6f67
Grivas, Christos
7f564818-0ac0-4127-82a7-22e87ac35f1a
Yong, Yean Sheng
ae552d9e-bc9d-4d93-9321-505f3206dfa8
García-Blanco, Sonia M.
fceca377-1318-4554-af33-a89fd234b2c0
Herek, Jennifer L.
ff7fb89f-8999-46f0-8c51-83cbaf5a9865
Pollnau, Markus
d09faeb8-2a90-4088-a8b6-49ae165755ee

Vázquez-Córdova, Sergio A., Aravazhi, Shanmugam, Grivas, Christos, Yong, Yean Sheng, García-Blanco, Sonia M., Herek, Jennifer L. and Pollnau, Markus (2018) High optical gain in erbium-doped potassium double tungstate channel waveguide amplifiers. Optics Express, 26 (5), 6260-6266. (doi:10.1364/OE.26.006260).

Record type: Article

Abstract

We report on the optical-gain properties of channel waveguides patterned into lattice-matched KGdxLuyEr1-x-y(WO4)2 layers grown onto undoped KY(WO4)2 substrates by liquid phase epitaxy. A systematic investigation of gain is performed for five different Er3+ concentrations in the range of 0.75 to 10at.% and different pump powers and signal wavelengths. In pump-probe-beam experiments, relative internal gain, i.e., signal enhancement minus absorption loss of light propagating in the channel waveguide, is experimentally demonstrated, with a maximum value of 12 ± 5 dB/cm for signals at the peak-emission wavelength of 1534.7 nm.

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Accepted/In Press date: 13 February 2018
e-pub ahead of print date: 28 February 2018
Published date: 5 March 2018

Identifiers

Local EPrints ID: 419262
URI: http://eprints.soton.ac.uk/id/eprint/419262
ISSN: 1094-4087
PURE UUID: 06261490-9a68-4df6-8180-2a0bf8ddec27

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Date deposited: 09 Apr 2018 16:30
Last modified: 16 Dec 2019 18:21

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Contributors

Author: Sergio A. Vázquez-Córdova
Author: Shanmugam Aravazhi
Author: Christos Grivas
Author: Yean Sheng Yong
Author: Sonia M. García-Blanco
Author: Jennifer L. Herek
Author: Markus Pollnau

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