Journal
LASER PHYSICS
Volume 23, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1054-660X/23/2/025003
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Funding
- MICINN [FIS2009-07870]
- UCM/CAM [GR35/10-A]
- Ministerio de Educacion
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We demonstrate Q-switched operation of a transversely diode-pumped Nd:YLF (yttrium lithium fluoride) laser using chemical vapour deposition-grown large-area monolayer graphene transferred to a dielectric saturable-absorber mirror (G-SAM). The resulting compact design operates at 1047 nm with 2.5 mu s pulses in a 100% modulation Q-switch regime with an average and very stable output power of 0.5 W. Different cavity lengths have been employed and the results are compared against a theoretical model based on rate equations, evidencing the role of transverse pumping in the system. The model also reveals that monolayer graphene effectively leads to shorter and more powerful pulses compared to those with multilayer graphene. These results establish the potential of single-layer graphene for providing a reliable and efficient Q-switch mechanism in solid-state lasers.
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