Double-clad structures and proximity coupling for diode-bar-pumped planar waveguide lasers
Double-clad structures and proximity coupling for diode-bar-pumped planar waveguide lasers
We report, for the first time, fabrication of double-clad planar waveguide structures and their use for multiwatt, diode-bar-pumped, planar waveguide lasers based on Nd3+ and Yb3+-doped YAG. The direct-bonded, five-layer structures of sapphire, YAG, and rare-earth-doped YAG have sufficient numerical aperture to capture the fast-axis divergence of a diode bar by proximity coupling with no intervening optics, leading to very simple and compact devices. The restriction of the doped region to the central core leads to diffraction-limited laser output in the guided direction. We also show that the direct-bonding fabrication process can lead to a linearly polarized output.
236-242
Bonner, C.L.
96e1b86d-6161-469a-b090-9aacf1e96c98
Bhutta, T.
6e32b59c-cd48-4454-9378-a7a8ab10d28e
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
February 2000
Bonner, C.L.
96e1b86d-6161-469a-b090-9aacf1e96c98
Bhutta, T.
6e32b59c-cd48-4454-9378-a7a8ab10d28e
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Bonner, C.L., Bhutta, T., Shepherd, D.P. and Tropper, A.C.
(2000)
Double-clad structures and proximity coupling for diode-bar-pumped planar waveguide lasers.
IEEE Journal of Quantum Electronics, 36 (2), .
(doi:10.1109/3.823470).
Abstract
We report, for the first time, fabrication of double-clad planar waveguide structures and their use for multiwatt, diode-bar-pumped, planar waveguide lasers based on Nd3+ and Yb3+-doped YAG. The direct-bonded, five-layer structures of sapphire, YAG, and rare-earth-doped YAG have sufficient numerical aperture to capture the fast-axis divergence of a diode bar by proximity coupling with no intervening optics, leading to very simple and compact devices. The restriction of the doped region to the central core leads to diffraction-limited laser output in the guided direction. We also show that the direct-bonding fabrication process can lead to a linearly polarized output.
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Published date: February 2000
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 13658
URI: http://eprints.soton.ac.uk/id/eprint/13658
ISSN: 0018-9197
PURE UUID: 268ab02d-a3b6-4d25-880c-6e2e52474ec6
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Date deposited: 22 Dec 2004
Last modified: 16 Mar 2024 02:39
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Author:
C.L. Bonner
Author:
T. Bhutta
Author:
D.P. Shepherd
Author:
A.C. Tropper
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