Stored energy and gain lasing in an edge-pumped ceramic Yb:YAG disk laser under intense pumping

Autor:	Drew A. Copeland, John Vetrovec, Suraj Joottu Thiagarajan, Eldridge Briscoe, Amardeep S. Litt
Rok vydání:	2017
Předmět:	Ytterbium Amplified spontaneous emission Materials science business.industry Gain Physics::Optics chemistry.chemical_element Laser pumping Laser law.invention Optics chemistry law Laser power scaling Disk laser business Lasing threshold
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.2253547
Popis:	We report on testing of an edge-pumped ceramic Yb:YAG disk laser for pulse amplification under intense pumping. The disk has a composite construction with Yb-doped central portion cosintered with an undoped perimetral edge. Light from multi-kW pulsed diodes is transported though the disk edge and absorbed in the Yb-doped center. This configuration results in a very simple and compact laser gain module. The disk is operated as a storage amplifier. Amplified spontaneous emission and parasitic lasing is alleviated by the geometry of the laser disk edge rather than absorption cladding. Our test results indicate that this approach offers a robust mitigation of ASE. This work presents results of stored energy, gain, and ASE mitigation in the Yb:YAG disk laser under intense pumping.
Databáze:	OpenAIRE
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