Dynamically stable lasers from commercial Nd:YAG modules with high beam quality and single-frequency
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2020
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SPIE PHOTONICS WEST; SPIE LASE
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Resumo
Diode-side pump Nd:YAG rod modules are widely available, reliable and commercially very attractive for building
continuous-wave solid-state lasers in the 10-1000 W range. Newer technologies such as fiber or thin disk lasers are
generally much more expensive but have the benefit of better beam quality and higher output powers if necessary. By
using well-known techniques for designing dynamically stable resonators (DSRs), lasers with high extraction efficiency
and high beam quality (fundamental mode, TEM00) can be obtained also with diode side-pumped modules. However, a
successful project for a dynamic stable laser depends critically on the correct choice of the fundamental mode diameter
within the rod. DSR design rules are based on the beam waist, w3, at the rod principal planes by considering the rod as a
thin thermal lens, which differs significantly from real resonators. Here we give guidelines and criteria on how to establish
the correct diameter in each case. Using off-the-shelf 75 W Nd:YAG modules it was possible to obtain linearly polarized
TEM00-mode output of 30 W with M2=1.08 from a single module, M2=1.2 and 76.5 W of output power using two modules
and 100.5 W of polarized, continuous output with M2=1.8. A single-frequency ring laser was also built, using two modules,
generating 51.6 W of fundamental wave single-frequency output.
Como referenciar
BERECZKI, A.; WETTER, NIKLAUS U. Dynamically stable lasers from commercial Nd:YAG modules with high beam quality and single-frequency: the correct choice of the fundamental waist size at the rod. In: KUDRYASHOV, ALEXIS V. (ed.); PAXTON, ALAN H. (ed.); ILCHENKO, VLADIMIR S. (ed.); ARMANI, ANDREA M. (ed.). In: SPIE PHOTONICS WEST; SPIE LASE, February 1-6, 2020, San Francisco, USA. Proceedings... Washington, USA: SPIE, 2020. p. 1126617-1 - 1126617-10. (Proceedings SPIE 11266, Laser Resonators, Microresonators, and Beam Control XXII). DOI: 10.1117/12.2545005. Disponível em: http://repositorio.ipen.br/handle/123456789/31559. Acesso em: 20 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.