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Characterization of ion implanted waveguides in Nd:YAG

Characterization of ion implanted waveguides in Nd:YAG
Characterization of ion implanted waveguides in Nd:YAG
Ion implantation into Nd:YAG has been used to produce waveguides which are capable of supporting laser action. The refractive index profiles have been characterized as a function of ion dose and energy, implant temperature, and subsequent thermal annealing. Transmission losses down to 1.2 dB/cm have been obtained in the optimized waveguides. There is a temperature independent index enhancement of ~0.15% in the electronic stopping (guiding) region. The nuclear collision damage is temperature dependent, and shows an initial index increase ~0.3% for dose 1x1016 ions/cm2), but a subsequent decrease of up to several percent, which forms an optical barrier, as has been observed in many other crystalline materials. The best mode confinement and attenuation is obtained by utilizing the low dose nuclear index enhancement produced by several equally spaced implants (multiple energy) to give a broad well with Δn ~ 0.25%. Several unusual features of the profiles are reported and discussed.
0021-8979
3440-3446
Field, S.J.
9a83abb1-bc45-4b90-9ca0-be4d5cb793a6
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Zhang, L.
1170f035-b8d0-490c-ac24-ee05105011a7
Chandler, P.J.
df497652-94c6-4987-9fe1-a4b93111dadf
Townsend, P.D.
d09c7d3f-d83e-43cd-8ac4-546701bb860f
Field, S.J.
9a83abb1-bc45-4b90-9ca0-be4d5cb793a6
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Zhang, L.
1170f035-b8d0-490c-ac24-ee05105011a7
Chandler, P.J.
df497652-94c6-4987-9fe1-a4b93111dadf
Townsend, P.D.
d09c7d3f-d83e-43cd-8ac4-546701bb860f

Field, S.J., Hanna, D.C., Shepherd, D.P., Tropper, A.C., Zhang, L., Chandler, P.J. and Townsend, P.D. (1991) Characterization of ion implanted waveguides in Nd:YAG. Journal of Applied Physics, 69 (6), 3440-3446. (doi:10.1063/1.348962).

Record type: Article

Abstract

Ion implantation into Nd:YAG has been used to produce waveguides which are capable of supporting laser action. The refractive index profiles have been characterized as a function of ion dose and energy, implant temperature, and subsequent thermal annealing. Transmission losses down to 1.2 dB/cm have been obtained in the optimized waveguides. There is a temperature independent index enhancement of ~0.15% in the electronic stopping (guiding) region. The nuclear collision damage is temperature dependent, and shows an initial index increase ~0.3% for dose 1x1016 ions/cm2), but a subsequent decrease of up to several percent, which forms an optical barrier, as has been observed in many other crystalline materials. The best mode confinement and attenuation is obtained by utilizing the low dose nuclear index enhancement produced by several equally spaced implants (multiple energy) to give a broad well with Δn ~ 0.25%. Several unusual features of the profiles are reported and discussed.

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Published date: 1991

Identifiers

Local EPrints ID: 78550
URI: http://eprints.soton.ac.uk/id/eprint/78550
ISSN: 0021-8979
PURE UUID: 80ae9f38-2a8b-4a0c-a6f1-51f08ea407db
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

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Date deposited: 11 Mar 2010
Last modified: 11 Dec 2021 02:47

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Contributors

Author: S.J. Field
Author: D.C. Hanna
Author: D.P. Shepherd ORCID iD
Author: A.C. Tropper
Author: L. Zhang
Author: P.J. Chandler
Author: P.D. Townsend

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