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Buried laser waveguides in neodymium-doped BK-7 by K+-Na+ ion-exchange across a direct-bonded interface

Buried laser waveguides in neodymium-doped BK-7 by K+-Na+ ion-exchange across a direct-bonded interface
Buried laser waveguides in neodymium-doped BK-7 by K+-Na+ ion-exchange across a direct-bonded interface
We report a technique for producing single-step buried K+-Na+ ion-exchanged waveguide lasers in neodymium doped BK-7. Direct bonding is the basis for this process, providing atomic contact between two chemically modified BK-7-type substrates followed by a 350°C treatment suitable for simultaneous annealing and intersubstrate ion-exchange. Characterization of a 6-mm long device was performed using a Ti:Sapphire laser operating at 808 nm. The resultant laser output exhibited TE polarized single-spatial-mode operation with losses of < 0.4 dB /cm and a maximum output power of 8.5 mW for 249 mW of absorbed pump power.
0003-6951
3757-3759
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Bhutta, Tajamal
dfc5c436-4498-41f3-8590-0c1a6ac7e59f
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Hua, Ping
92fa76e2-970b-45f5-a459-d9f95e735303
Wang, Ji
7a7f4880-f127-4292-803a-51c408512f40
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Bhutta, Tajamal
dfc5c436-4498-41f3-8590-0c1a6ac7e59f
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Hua, Ping
92fa76e2-970b-45f5-a459-d9f95e735303
Wang, Ji
7a7f4880-f127-4292-803a-51c408512f40
Ross, Graeme W.
131c68e3-a31b-41a9-b48a-8d8fa1d44ef7
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Gawith, Corin B.E., Bhutta, Tajamal, Shepherd, David P., Hua, Ping, Wang, Ji, Ross, Graeme W. and Smith, Peter G.R. (1999) Buried laser waveguides in neodymium-doped BK-7 by K+-Na+ ion-exchange across a direct-bonded interface. Applied Physics Letters, 75 (24), 3757-3759. (doi:10.1063/1.125446).

Record type: Article

Abstract

We report a technique for producing single-step buried K+-Na+ ion-exchanged waveguide lasers in neodymium doped BK-7. Direct bonding is the basis for this process, providing atomic contact between two chemically modified BK-7-type substrates followed by a 350°C treatment suitable for simultaneous annealing and intersubstrate ion-exchange. Characterization of a 6-mm long device was performed using a Ti:Sapphire laser operating at 808 nm. The resultant laser output exhibited TE polarized single-spatial-mode operation with losses of < 0.4 dB /cm and a maximum output power of 8.5 mW for 249 mW of absorbed pump power.

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Published date: October 1999

Identifiers

Local EPrints ID: 77773
URI: https://eprints.soton.ac.uk/id/eprint/77773
ISSN: 0003-6951
PURE UUID: e99a7fba-d605-4aad-a9a2-3277fc7ade7a
ORCID for Corin B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558
ORCID for David P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184
ORCID for Peter G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

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Date deposited: 11 Mar 2010
Last modified: 03 Dec 2019 02:05

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Contributors

Author: Tajamal Bhutta
Author: David P. Shepherd ORCID iD
Author: Ping Hua
Author: Ji Wang
Author: Graeme W. Ross

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