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Suppressing the preferential σ-polarization oscillation in a high power Nd:YVO4 laser with wedge laser crystal.
- Source :
-
Chinese Physics B . Aug2013, Vol. 22 Issue 8, p084207-084211. 5p. - Publication Year :
- 2013
-
Abstract
- We observe the phenomenon of priority oscillation of the unexpected σ-polarization in high-power Nd:YVO4 ring laser. The severe thermal lens of the σ-polarized lasing, compared with the π-polarized lasing, is the only reason for the phenomenon. By designing a wedge Nd:YVO4 crystal as the gain medium, the unexpected σ-polarization is completely suppressed in the entire range of pump powers, and the polarization stability of the expected π-polarized output is enhanced. With the output power increasing from threshold to the maximum power, no σ-polarization lasing is observed. As a result, 25.3 W of stable single-frequency laser output at 532 nm is experimentally demonstrated. [ABSTRACT FROM AUTHOR]
- Subjects :
- *OSCILLATIONS
*THERMAL lensing
*HIGH power lasers
*LASERS
*THERMO-optical effects
Subjects
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 22
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 94287814
- Full Text :
- https://doi.org/10.1088/1674-1056/22/8/084207