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For many years, Ti:sapphire was the prototypical example of a solid-state laser material that could not be diode pumped. The rationale for this assessment follows from the laser properties of Ti:sapphire, which combine to demand high brightness pumping in the blue-green region (see fig. 1 ). The development of efficient Gallium Nitride (GaN) based laser diodes eroded this logic , and improvements in the spatial brightness of GaN diode lasers subsequently enabled the first demonstration of a directly diode-laser pumped Ti:sapphire laser in 2009 , This presentation will outline the physics that makes diode-pumping difficult, and the developments that mean, it is, nonetheless, possible. Interestingly, diode-pumping of CW and modelocked Ti:sapphire lasers was achieved not by a radical redesign of the laser, but by careful optimisation of existing approaches that enabled the rapidly improving brightness of GaN diode lasers to be exploited [3-5].
|Title of host publication||2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019|
|Place of Publication||Piscataway, NJ.|
|Number of pages||2|
|Publication status||Published - 23 Jun 2019|
|Event||2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany|
Duration: 23 Jun 2019 → 27 Jun 2019
|Name||2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019|
|Conference||2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019|
|Period||23/06/19 → 27/06/19|
- titanium sapphire
- Ti:sapphire laser
- GaN diodes
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- 2 Finished
UK Quantum Technology Hub for Sensors and Metrology
Hastie, J., Arnold, A., Griffin, P., Kemp, A. & Riis, E.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/14 → 30/11/19
RAEng/Fraunhofer Research Chair in Advanced Laser Engineering
Fraunhofer UK Research Limited, Royal Academy of Engineering RAE
1/02/14 → 31/12/19