2.097u Cth:YAG flashlamp pumped high energy high efficiency laser operation (patent pending)

Dan Bar-Joseph

doi:10.1117/12.2281504

15 February 2018 2.097μ Cth:YAG flashlamp pumped high energy high efficiency laser operation (patent pending)

Dan Bar-Joseph

Proceedings Volume 10511, Solid State Lasers XXVII: Technology and Devices; 1051107 (2018) https://doi.org/10.1117/12.2281504
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Flashlamp pumped Cth:YAG lasers are mainly used in medical applications (urology). The main laser transition is at 2.13μ and is called a quasi-three level having an emission cross-section of 7x10^-21 cm² and a ground state absorption of approximately 5%/cm. Because of the relatively low absorption, combined with a modest emission cross-section, the laser requires high reflectivity output coupling, and therefore high intra-cavity energy density which limits the output to approximately 4J/pulse for reliable operation.

This paper will describe a method of efficiently generating high output energy at low intra-cavity energy density by using an alternative 2.097μ transition having an emission cross-section of 5x10^-21 cm² and a ground level absorption of approximately 14%/cm.

Conference Presentation

Citation Download Citation

Dan Bar-Joseph "2.097μ Cth:YAG flashlamp pumped high energy high efficiency laser operation (patent pending)", Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 1051107 (15 February 2018); https://doi.org/10.1117/12.2281504

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