Abstract
An efficient room temperature Ho: laser resonantly pumped by a Tm:YAP laser is demonstrated, for the first time to our knowledge, in this Letter. Up to of laser output at is obtained with the optical-to-optical conversion efficiency as much as 41.2%. The output beam had quality of factor with of 3.58 and of 1.76 at output level. In addition, we also obtained laser output at and at from the Ho: laser with conversion efficiency of 27.8% and 33.8%, respectively.
© 2011 Optical Society of America
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