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A 1.9µm thulium doped lead germanate waveguide laser

A 1.9µm thulium doped lead germanate waveguide laser
A 1.9µm thulium doped lead germanate waveguide laser
Tm3+ doped lead germanate glass has already been shown to be a promising source of 1.9µm radiation using the 3H4 to 3H6 transition in a fibre geometry. The maximum vibrational energy of these glasses lies between that of silica and heavy metal fluoride glasses. This increases the radiative lifetime of the upper laser level in comparison to silicates while increasing the multiphonon non-radiative decay from the 3F4 pumping level into the upper laser level in comparison to fluorides. Thus the 1.9µm Tm3+ laser performance is enhanced in these glasses bringing fibre laser thresholds easily within reach of diode pumping. Recent work has also shown that such glasses give very low propagation loss guides (0.15 dB/cm) when implanted with He ions. Here we report lasing in a planar ion-implanted waveguide in Tm-doped lead germanate. This is the first report of lasing for thulium in any planar waveguide system and this is also the longest wavelength so far reported for such systems. This is also the first report of lasing in a glass host using ion-implantation as the means of waveguide fabrication
Shepherd, D.P.
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Brinck, D.J.
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Hanna, D.C.
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Payne, D.N.
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Wang, J.
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Tropper, A.C.
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Kakarantzas, G.
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Townsend, P.D.
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Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Brinck, D.J.
502eebad-0290-4efe-9746-4fbd0924653c
Hanna, D.C.
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Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Wang, J.
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Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Kakarantzas, G.
d69de226-a331-4718-ad39-a97e6d1a199f
Townsend, P.D.
d09c7d3f-d83e-43cd-8ac4-546701bb860f

Shepherd, D.P., Brinck, D.J., Hanna, D.C., Payne, D.N., Wang, J., Tropper, A.C., Kakarantzas, G. and Townsend, P.D. (1993) A 1.9µm thulium doped lead germanate waveguide laser. 11th National Quantum Electronics Conference (QE-11), United Kingdom. 30 Aug - 02 Sep 1993.

Record type: Conference or Workshop Item (Paper)

Abstract

Tm3+ doped lead germanate glass has already been shown to be a promising source of 1.9µm radiation using the 3H4 to 3H6 transition in a fibre geometry. The maximum vibrational energy of these glasses lies between that of silica and heavy metal fluoride glasses. This increases the radiative lifetime of the upper laser level in comparison to silicates while increasing the multiphonon non-radiative decay from the 3F4 pumping level into the upper laser level in comparison to fluorides. Thus the 1.9µm Tm3+ laser performance is enhanced in these glasses bringing fibre laser thresholds easily within reach of diode pumping. Recent work has also shown that such glasses give very low propagation loss guides (0.15 dB/cm) when implanted with He ions. Here we report lasing in a planar ion-implanted waveguide in Tm-doped lead germanate. This is the first report of lasing for thulium in any planar waveguide system and this is also the longest wavelength so far reported for such systems. This is also the first report of lasing in a glass host using ion-implantation as the means of waveguide fabrication

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Published date: 1993
Additional Information: Technical digest paper 1059
Venue - Dates: 11th National Quantum Electronics Conference (QE-11), United Kingdom, 1993-08-30 - 1993-09-02
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 77246
URI: https://eprints.soton.ac.uk/id/eprint/77246
PURE UUID: b98fbd0b-d713-48a7-a79a-845cb707466c
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

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Date deposited: 11 Mar 2010
Last modified: 03 Apr 2019 00:37

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Contributors

Author: D.P. Shepherd ORCID iD
Author: D.J. Brinck
Author: D.C. Hanna
Author: D.N. Payne
Author: J. Wang
Author: A.C. Tropper
Author: G. Kakarantzas
Author: P.D. Townsend

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