Abstract

Power scaling in the limited compact volume have been interested as a key issue of solid-state micro photonics, precise thermo-mechanical and -optical parameters such as thermal conductivity k, thermal expansion coefficient a, thermal refractive index coefficient dn/dT of laser media are required. A factor of κ/α is proportional to a thermal-shock parameter RT [1], and thus implies the resistance for thermo-mechanical effects. Similarly a factor of x/(dn/dT) is proportional to the focal length of thermal lens fT [1]. Since x of laser media are usually estimated by laser-flash method, previously reported values often contained error caused by non one-dimensional thermal conduction and heat transmission through radiation. We proposed qlD-flash method to avoid these error factors [2], and found that x of Nd:YVO4 is twice the well-known value, and is larger than Nd:GdVO4 and Nd:YAG. This result indicated that RT of Nd:YVO4 should be larger than currently recognized value. In this work we summarized thermal characteristics of YVO4 with comparative study of GdVO4 by using of carefully evaluated k, a, dn/dT, thermal heat capacity coefficient dCp/dT, and thermal conductivity coefficient dk/dT.

© 2007 IEEE

PDF Article
More Like This
Thermo-optical and -mechanical parameters of Nd:GdVO4 and Nd:YVO4

Y. Sato and T. Taira
JWA87 Conference on Lasers and Electro-Optics (CLEO) 2007

Accurate interferometric evaluation of thermo-mechanical and -optical properties of YAG, YVO4, and GdVO4

Yoichi Sato and Takunori Taira
AM4A.16 Advanced Solid State Lasers (ASSL) 2013

Dispersion and Anisotropy of Thermo-Optical Properties of Tetragonal GdVO4 and YVO4 Laser Host Crystals

P.A. Loiko, K.V. Yumashev, V.N. Matrosov, and N.V. Kuleshov
CE_6_5 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2013

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription