Title :
Co/sup 2+/:MgAl/sub 2/O/sub 4/ crystal saturable absorber Q-switch for 1.3 /spl mu/m (1.5 /spl mu/m) solid state lasers
Author :
Mikhailov, V.P. ; Yumashev, K.V. ; Denisov, I.A. ; Prokoshin, P.V. ; Posnov, N.N.
Author_Institution :
Int. Laser. Center, Belarussian State Polytech. Acad., Minsk, Byelorussia
Abstract :
Summary form only given. Tetrahedrally coordinated Co/sup 2+/-doped Y/sub 3/Al/sub 5/O/sub 12/, Y/sub 3/Sc/sub 2/Ga/sub 3/O/sub 12/, ZnSe, and glass ceramic can be used as saturable absorbers for passive Q-switching of 1.5 /spl mu/m Er/sup 3+/:glass lasers. Furthermore, the crystals doped with tetrahedral Co/sup 2+/ ions are considered as candidates for a tunable solid state laser in the visible and near infrared. We report here on Q-switching and mode-locking of a 1.34 /spl mu/m Nd/sup 3+/:YAlO/sub 3/ laser as well as Q-switching of a 1.54 /spl mu/m Er/sup 3+/:glass laser using Co/sup 2+/:MgAl/sub 2/O/sub 4/ crystal as saturable absorber. Absorption saturation and picosecond differential absorption spectra of the Co/sup 2+/:MgAl/sub 2/O/sub 4/ crystal are investigated.
Keywords :
Q-switching; cobalt; erbium; laser mode locking; magnesium compounds; neodymium; optical glass; optical materials; optical saturable absorption; solid lasers; yttrium compounds; 1.3 mum; 1.34 mum; 1.54 mum; Co/sup 2+/:MgAl/sub 2/O/sub 4/; Co/sup 2+/:MgAl/sub 2/O/sub 4/ crystal; Co/sup 2+/:Y/sub 3/Al/sub 5/O/sub 12/; Co/sup 2+/:Y/sub 3/Sc/sub 2/Ga/sub 3/O/sub 12/; Co/sup 2+/:ZnSe; Er/sup 3+/:glass laser; Er/sup 3+/:glass lasers; MgAl/sub 2/O/sub 4/:Co; Nd/sup 3+/:YAlO/sub 3/ laser; Q-switching; YAlO/sub 3/:Nd; absorption saturation; glass ceramic; mode-locking; near infrared laser; passive Q-switching; picosecond differential absorption spectra; saturable absorber; saturable absorber Q-switch; saturable absorbers; solid state lasers; tetrahedral Co/sup 2+/ ions; tetrahedrally coordinated crystals; tunable solid state laser; visible laser; Absorption; Ceramics; Crystals; Erbium; Glass; Laser mode locking; Neodymium; Solid lasers; Tunable circuits and devices; Zinc compounds;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.833982
