Tunable distributed feedback color center laser using stabilized F2 +** color centers in LiF crystal
نویسندگان
چکیده
The first room temperature stable tunable color center (CC) distributed feedback (DFB) laser is described. The laser utilizes stabilized F2 +** centers in LiF (LiF:F2 ) as a gain medium. Tunable DFB lasing was achieved in the near IR region (882 962 nm) with a lasing linewidth of less than 0.2 cm. The lasing threshold was found to be 1.2 mJ, while the slope efficiency with respect to pump energy was found to be as high as 3%.
منابع مشابه
COMPACT TUNABLE LiF COLOR CENTER LASER SYSTEM
The laser utilizing LiF crystal with F2 color centers (CC) is an efficient and reliable source of tunable radiation which covers a broad near IR spectral region that is very important for scientific applications and allows using CC lasers for spectroscopic investigations of rare earth doped laser materials [1]. The CW operation of LiF:F2 CC laser is complicated due to short lifetime of F2 CC (5...
متن کاملPowerful ultrabroadly tunable LW:F2+** laser
The LiF:F2+** laser has been shown' to provide high power (hundreds ofmJ), efficient (tens of%), room temperature stable laser operation tunable from 800 nm to nearly 1210 nm. However, no reasonable explanations were provided for such an ultrabroadband tuning capability using this active medium. This work describes the mechanism ofthe ullrabroadband lasing from LiF:F2+** und Alexandrite 1asa pu...
متن کاملSTABLE LiF:F+2 COLOR CENTER LASER OSCILLATION AT ROOM TEMPERATURE*
An LiF:F+2 color center laser using a two-mirror cavity is reported. The LiF:F+2 laser was achieved by creating the F+2 centers through the photoionization of the F2 color centers at room temperature and simultaneously by exciting the F+2 centers optically. We obtained the F+2 broadband laser oscillation with a peak at 930 nm, and it was more powerful than the room-temperature broadband LiF:F+3...
متن کاملSelf-Q-switched diode-end-pumped Cr,Nd:YAG laser with polarized output.
Passive Q switching of solid-state lasers is usually accomplished with organic dyes or color centers as the saturable absorber. Dyes, however, have poor thermal stability and tend to degrade rapidly. To operate in cw-pumped lasers, dyes require a circulation system. Color centers, such as the color-center LiF crystal, -3 exhibit a fading phenomenon that may limit the period of reliable operatio...
متن کاملFORMATION OF F2 - COLOR CENTERS IN LiF MONOCRYSTALS BY ELECTRON IRRADIATION
Formation conditions, optical non-linear properties and some applications of F2 color centers in LIF monocrystals are investigated.
متن کامل