We experimentally demonstrated the manipulation of 2 μm linearly polarized states in a diode-pumped YAG/Tm:YAG/YAG laser with high polarization extinction ratio of 28 dB for the very first time to the best of our knowledge. A stable linearly polarized state of 2 μm was achieved without using any specific intracavity optical polarization-selected elements. The unexpected phenomenon of tunable linear polarization directions was observed. Multidistinct linear polarization directions were experimentally obtained, including the peculiar case of switchable orthogonally linear polarization directions.
© 2014 Optical Society of America
Lasers and Laser Optics
Original Manuscript: January 23, 2014
Revised Manuscript: February 18, 2014
Manuscript Accepted: February 19, 2014
Published: March 24, 2014
Yanying Li, Weidong Chen, Haifeng Lin, Da Ke, Ge Zhang, and Yung-Fu Chen, "Manipulation of linearly polarized states in a diode-pumped YAG/Tm:YAG/YAG bulk laser," Opt. Lett. 39, 1945-1948 (2014)