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Laser diode pumped waveguide lasers in neodymium-doped BK-7 glass

Laser diode pumped waveguide lasers in neodymium-doped BK-7 glass
Laser diode pumped waveguide lasers in neodymium-doped BK-7 glass
Ion-exchange in neodymium doped glasses has been used to fabricate waveguides which were optically pumped to realise lasers. The application of these layers as light sources in glass substrates will enhance the functionality of integrated optic systems in glass, allowing integration of active and passive devices. To obtain practical light sources, the neodymium-doped waveguides must be laser diode pumped to provide compact laser systems. Since the power available from a single stripe laser diode is limited, it is necessary to design the waveguide so that its modal field pattern matches that of the laser diode, thereby minimising the pump power required from the laser diode for the waveguide laser to reach threshold. We report on the fabrication and characterisation of waveguide laser pumped with a laser diode. These lasers operated in a continuous wave at a wave length of 1059nm, and were single transverse mode at both the pump and lasing wavelengths. The variation of the waveguide laser thresholds with the waveguide dimensions reveals the existence of an optimum dimension which minimises the laser threshold. A laser threshold of 20mW from the pump source and an overall slope efficiency of 5% with respect to the laser diode output power was obtained.
Mwarania, E.K.
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Chow, Y.T.
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Reekie, L.
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Wang, J.
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Wilkinson, J.S.
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Mwarania, E.K.
500f2694-71ee-4266-b2b4-d781743d6636
Chow, Y.T.
c7c31eb0-8f8c-4ff5-a02a-05b445becc65
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca

Mwarania, E.K., Chow, Y.T., Reekie, L., Wang, J. and Wilkinson, J.S. (1990) Laser diode pumped waveguide lasers in neodymium-doped BK-7 glass. IOP Meeting: Miniature and Waveguide Solid State Lasers, United Kingdom.

Record type: Conference or Workshop Item (Paper)

Abstract

Ion-exchange in neodymium doped glasses has been used to fabricate waveguides which were optically pumped to realise lasers. The application of these layers as light sources in glass substrates will enhance the functionality of integrated optic systems in glass, allowing integration of active and passive devices. To obtain practical light sources, the neodymium-doped waveguides must be laser diode pumped to provide compact laser systems. Since the power available from a single stripe laser diode is limited, it is necessary to design the waveguide so that its modal field pattern matches that of the laser diode, thereby minimising the pump power required from the laser diode for the waveguide laser to reach threshold. We report on the fabrication and characterisation of waveguide laser pumped with a laser diode. These lasers operated in a continuous wave at a wave length of 1059nm, and were single transverse mode at both the pump and lasing wavelengths. The variation of the waveguide laser thresholds with the waveguide dimensions reveals the existence of an optimum dimension which minimises the laser threshold. A laser threshold of 20mW from the pump source and an overall slope efficiency of 5% with respect to the laser diode output power was obtained.

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Published date: December 1990
Venue - Dates: IOP Meeting: Miniature and Waveguide Solid State Lasers, United Kingdom, 1990-12-01

Identifiers

Local EPrints ID: 77457
URI: https://eprints.soton.ac.uk/id/eprint/77457
PURE UUID: da7fdd8c-eee4-4e9e-a8a8-4338367bcbee
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

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Date deposited: 11 Mar 2010
Last modified: 03 Apr 2019 00:38

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