| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Shepherd, David P.
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2018Yb-doped mixed sesquioxide thin films grown by pulsed laser depositioncitations
- 2018Towards high-power on-chip GHz frequency combs
- 2017Tailoring the refractive index of films during pulsed laser deposition growth
- 2017Pulsed laser deposition of garnets at a growth rate of 20-microns per hour
- 2016Laser performance of Yb-doped-garnet thin films grown by pulsed laser deposition
- 2016PLD growth of complex waveguide structures for applications in thin-film lasers: a 25 year retrospective
- 2016Engineered crystal layers grown by pulsed laser deposition: making bespoke planar gain-media devices
- 2016Pulsed laser deposited crystalline optical waveguides for thin-film lasing devices
- 2015Graphene Q-switched mode-locked and Q-switched ion-exchanged waveguide laserscitations
- 2015Pulsed laser-assisted fabrication of laser gain media
- 2015Towards fabrication of 10 W class planar waveguide lasers: analysis of crystalline sesquioxide layers fabricated via pulsed laser deposition
- 2014Near-infrared, mode-locked waveguide lasers with multi-GHz repetition rates
- 2014Pulsed laser deposition of thin films for optical and lasing waveguides (including tricks, tips and techniques to maximize the chances of growing what you actually want)
- 2014Graphene q-switched Yb: phosphate glass channel waveguide laser
- 2012Passively mode-locked diode-pumped monolithic channel waveguide laser with a repetition rate of 4.9 GHz
- 2008Current state-of-the-art of pulsed laser deposition of optical waveguide structures: existing capabilities and future trendscitations
- 2006Optical waveguide growth and applications
- 2004Laser operation of a low loss (0.1dB/cm) Nd:Gd3Ga5O12 thick (40 micron) planar waveguide grown by pulsed laser depositioncitations
- 2004Channel waveguide lasers in a lead silicate glass fashioned using the extrusion techniquecitations
- 2003Gain measurements at 2.8µm and fluorescence spectroscopy in Er:LaF3 waveguides fabricated by molecular beam epitaxy
- 2003Three-dimensional structuring of sapphire by sequential He+ ion-beam implantation and wet chemical etchingcitations
- 2002Laser-assisted microstructuring for Ti:sapphire channel-waveguide fabrication
- 2002Synchronously pumped optical parametric oscillator driven by a femtosecond mode-locked fibre lasercitations
- 2002Laser performance and spectroscopic analysis of optically written channel waveguides in neodymium-doped gallium lanthanum sulphide glasscitations
Places of action
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document
PLD growth of complex waveguide structures for applications in thin-film lasers: a 25 year retrospective
Abstract
We have been using PLD to grow doped crystalline films of a range of laser hosts that include garnets (YAG, GGG and other variants), sapphire and, most recently, cubic sesquioxides (Y<sub>2</sub>O<sub>3</sub>, Sc<sub>2</sub>O<sub>3</sub>, and Lu<sub>2</sub>O<sub>3</sub>) for application as optically-pumped waveguide lasers. For the sesquioxides in particular, PLD offers a real advantage in terms of the ~1100K temperature required to grow crystalline thin films in comparison to ~2750K required to grow bulk crystals. We have grown these materials at deposition rates of up to ~5 µm per hour, on cheap and readily available single crystal substrates, which allows rapid production of waveguide samples of the ~10-30 µm thickness required for efficient pumping via high power diode lasers.<br/>We will describe the range of PLD techniques we have used to date, that include single-beam, multi-beam, consecutive and combinatorial as well as fast shuttering of multiple laser sources onto different targets. We will discuss strategies we have adopted to grow complex structures in both the vertical and horizontal planes of the waveguides, including multilayers, capped, graded and volume Bragg structures. Finally we will describe post-processing we have performed on the waveguides to improve the final mode quality of the lasing output produced, and to generate q-switched output via local deposition of graphene that acts as a Q-switch. <br/><br/>Our current levels of lasing output are approaching 20W in c.w. mode, and we will describe our strategy to exceed this via a MOPA structure using multiple PLD-grown waveguides.