Cyan praseodymium waveguide laser
[EN]In this Letter we report the demonstration of the first cyan Pr-based waveguide laser, fabricated inscribing depressed-cladding waveguides in Pr:Ba(Y0.8Lu0.2)2F8 by direct femtosecond laser writing. With an optimized waveguide geometry for the monoclinic crystal matrix, we demonstrate lasing at...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:dnet:gredos______::43ee4cfc25a0313d7fb1777c64f72bd1 |
| Acceso en línea: | http://hdl.handle.net/10366/171245 |
| Access Level: | acceso abierto |
| Palabra clave: | Beam splitters Diode lasers Femtosecond lasers Laser sources Solid state lasers Ultrafast lasers |
| Sumario: | [EN]In this Letter we report the demonstration of the first cyan Pr-based waveguide laser, fabricated inscribing depressed-cladding waveguides in Pr:Ba(Y0.8Lu0.2)2F8 by direct femtosecond laser writing. With an optimized waveguide geometry for the monoclinic crystal matrix, we demonstrate lasing at 495 nm, observing a maximum output power of 22 mW and a maximum slope efficiency of 7% in a compact 6 mm-long laser cavity. These values are comparable with those reported in the literature for solid-state devices based on bulk crystals. Incidentally, this is also the first, to our knowledge, demonstration of a waveguide visible laser based on a monoclinic crystal matrix. |
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