Title :
Diode-End-Pumped Midinfrared Multiwavelength Er:Pr:GGG Laser
Author :
Zhenyu You ; Yan Wang ; Jinlong Xu ; Zhaojie Zhu ; Jianfu Li ; Chaoyang Tu
Author_Institution :
Key Lab. of Optoelectron. Mater. Chem. & Phys., Fujian Inst. of Res. on the Struct. of Matter, Fuzhou, China
Abstract :
We report a diode-end-pumped midinfrared multiwavelength Er:Pr:GGG laser, generating the output powers of 324 and 354 mW in CW and pulsed modes, respectively. The slope efficiencies of CW and pulsed modes are 15.18% and 16.06%, respectively. Compared with Er:GGG, the laser properties of Er:Pr:GGG are much better and the self-termination bottleneck is broken successfully. The transverse beam profile and spectra of Er:Pr:GGG laser are measured and the relationship between lasing wavelengths and operating temperature in the triwavelength emission state are also studied. The Er:Pr:GGG crystal is a potential midinfrared laser gain medium in medical and military application.
Keywords :
erbium; gadolinium compounds; infrared spectra; laser applications in medicine; laser beams; laser modes; optical pumping; praseodymium; solid lasers; CW mode; Er:GGG; Er:Pr:GGG crystal; Er:Pr:GGG laser spectra; Gd3Ga5O12:(Er,Pr); diode-end-pumped mid-infrared multiwavelength Er:Pr:GGG laser; laser properties; lasing wavelengths; medical application; midinfrared laser gain medium; military application; operating temperature; power 324 mW; power 354 mW; pulsed mode; self-termination bottleneck; slope efficiencies; transverse beam profile; triwavelength emission state; Crystals; Laser excitation; Laser modes; Measurement by laser beam; Power generation; Pump lasers; Semiconductor lasers; ${rm Er}{:}{rm Pr}{:}{rm Gd}_{3}{rm Ga}_{5}{rm O}_{12}$; Ererbium laser; midinfrared laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2302837
