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CMOS-compatible high index contrast ytterbium-doped tantalum pentoxide rib waveguide lasers

CMOS-compatible high index contrast ytterbium-doped tantalum pentoxide rib waveguide lasers
CMOS-compatible high index contrast ytterbium-doped tantalum pentoxide rib waveguide lasers
Waveguide based solid-state lasers are key components in the quest to realise a compact, robust fully integrated optical circuit with advanced functionality including pulsed operation. Ta2O5 has been a promising host material for the realization of an integrated rare-earth doped waveguide laser as it offers many important attributes such as good ability to host rare-earth ions, a high refractive index (n ~ 2.124 at λ ~ 980 nm) and a large third order nonlinearity. Here, we present an integrated rib waveguide laser in Yb:Ta2O5 with quantification of the laser slope efficiency and threshold in respect to absorbed pump power as well as presenting its lasing spectrum. Symmetrical rib waveguides with a thickness of 1 µm defined by a shallow etch of 150 nm were fabricated in Yb:Ta2O5 and encapsulated in silica cladding. These waveguides were designed for single mode operation for wavelengths ranging from 970 nm to 1100 nm, covering typical operational regions of Yb-doped materials. The fabrication process used conventional CMOS technologies which have been previously reported, where spectroscopic characterisation of similar Yb-doped waveguides was included.
Aghajani, A.
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Murugan, G.S.
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Sessions, N.P.
ee737092-56b4-403e-a2f9-764e07e42625
Apostolopoulos, V.
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Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Aghajani, A.
4602c567-ed8e-4538-9d34-efde7db06dbb
Murugan, G.S.
a867686e-0535-46cc-ad85-c2342086b25b
Sessions, N.P.
ee737092-56b4-403e-a2f9-764e07e42625
Apostolopoulos, V.
8a898740-4c71-4040-a577-9b9d70530b4d
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca

Aghajani, A., Murugan, G.S., Sessions, N.P., Apostolopoulos, V. and Wilkinson, J.S. (2015) CMOS-compatible high index contrast ytterbium-doped tantalum pentoxide rib waveguide lasers. European Conference on Lasers and Electro-Optics (CLEO Europe), Germany. 21 - 25 Jun 2015. 1 pp .

Record type: Conference or Workshop Item (Poster)

Abstract

Waveguide based solid-state lasers are key components in the quest to realise a compact, robust fully integrated optical circuit with advanced functionality including pulsed operation. Ta2O5 has been a promising host material for the realization of an integrated rare-earth doped waveguide laser as it offers many important attributes such as good ability to host rare-earth ions, a high refractive index (n ~ 2.124 at λ ~ 980 nm) and a large third order nonlinearity. Here, we present an integrated rib waveguide laser in Yb:Ta2O5 with quantification of the laser slope efficiency and threshold in respect to absorbed pump power as well as presenting its lasing spectrum. Symmetrical rib waveguides with a thickness of 1 µm defined by a shallow etch of 150 nm were fabricated in Yb:Ta2O5 and encapsulated in silica cladding. These waveguides were designed for single mode operation for wavelengths ranging from 970 nm to 1100 nm, covering typical operational regions of Yb-doped materials. The fabrication process used conventional CMOS technologies which have been previously reported, where spectroscopic characterisation of similar Yb-doped waveguides was included.

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e-pub ahead of print date: June 2015
Additional Information: CJ-P.26
Venue - Dates: European Conference on Lasers and Electro-Optics (CLEO Europe), Germany, 2015-06-21 - 2015-06-25
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 379379
URI: https://eprints.soton.ac.uk/id/eprint/379379
PURE UUID: f3ad38cd-18de-4474-b05d-d30717abce17
ORCID for G.S. Murugan: ORCID iD orcid.org/0000-0002-2733-3273
ORCID for V. Apostolopoulos: ORCID iD orcid.org/0000-0003-3733-2191
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 21 Jul 2015 11:01
Last modified: 18 May 2019 00:33

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Contributors

Author: A. Aghajani
Author: G.S. Murugan ORCID iD
Author: N.P. Sessions
Author: J.S. Wilkinson ORCID iD

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