The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate efficient passively Q-switched laser operation, based on $\hbox{Tm}^{3+}\hbox{:LiGdF}_{4}$ and $\hbox{Cr}^{2+} $:ZnSe, as active medium and saturable absorber, respectively. The polarized emission was centered at 1876 nm, with pulse parameters of 13 ns (duration), 467 $\mu\hbox{J} $ (energy), and 37 kW (peak power) at a repetition rate of 350 Hz.
Output powers exceeding 1 W are achieved with a diode-pumped Tm,Ho:KLu(WO4)2 laser at 2078 nm at slope efficiency of ∼30% with respect to the absorbed power. Continuous tuning is possible over ∼180 nm.
Recently we demonstrated that periodically-poled oxide materials can be employed in short cavity, singly-resonant optical parametric oscillators (OPOs), with very low thresholds and high conversion efficiency [1]. We demonstrated sub-ns pulse durations down to ∼250 ps for the signal and idler pulses of 1–10 kHz OPOs based on periodically-poled KTiOPO4 (PPKTP) and pumped at 1064 nm. However, with maximum...
We report on passive Q-switching of a Tm-doped BaY2F8 (Tm:BYF) laser using Cr:ZnS saturable absorber achieving single pulse energies as high as 0.72 mJ, peak power exceeding 17 kW and pulse duration of 40 ns.
Stable passive Q-switching of a Tm:LiYF4 laser using polycrystalline Cr2+:ZnS saturable absorbers is demonstrated reaching pulse energies of 0.9 mJ and peak powers of 65 kW in 14-ns long pulses at ∼1.9 μm.
Operation of a GaS0.4Se0.6 optical parametric amplifier is demonstrated with 5–11 μm idler tuning range and maximum energies ∼10 μJ for sub-30-ps pulse durations, and performance ∼3 times better than with pure GaSe.
PPMgSLT is used for mode-locking of a diode-pumped Nd:GdVO4 laser by intracavity SHG. Stable and self-starting operation is observed achieving output powers of up to 4.7 W and pulse durations as short as 3.2 ps.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.