Results 251 to 260 of about 138,810 (343)

Passively Q-switched Tm:YLF laser

Optics Letters, 2012
Stable passive Q-switching of a Tm:  LiYF4 laser is obtained using polycrystalline Cr2+:  ZnS as a saturable absorber. The achieved maximum pulse energy of 0.9 mJ and peak power of 65 kW for a pulse duration of ∼14  ns represent substantial improvement and highest values for a passively Q-switched diode-pumped Tm laser operating at ∼1.9  μm.
R Faoro, M Kadankov, D Parisi, S Veronesi, M Tonelli, V Petrov, U Griebner, M Segura, X Mateos   +8 more
openaire   +5 more sources

Q-switched unidirectional ring lasers

IEEE Journal of Quantum Electronics, 1969
Traveling-wave operation of a ruby laser has been obtained by the use of a 5° Faraday rotator. Mode selection in a TW ruby laser with electrooptical Q switching is discussed.
A. Mikaeliane, J. Turkov, V. Kuprishov, V. Antonyanz, V. Kruglov   +4 more
openaire   +1 more source

Q-switched and gain-switched Fe:ZnSe lasers tunable over 360–515 µm

Optics Express, 2019
We report on room temperature gain-switched and Q-switched Fe:ZnSe lasers tunable over 3.60-5.15 µm pumped by radiation of an 2.94 µm Er:YAG laser. The maximum output energy was measured to be 5 mJ under 15 mJ of pump energy in gain-switched regime.
Vladimir V Fedorov, Dmitry Martyshkin, Sergey B Mirov   +2 more
exaly   +2 more sources

Q-Switched Laser Goniopuncture

Archives of Ophthalmology, 1974
A new approach to treatment of glaucoma has been tried, in which Q-switched laser bursts are delivered to the anterior chamber angle. Nonthermal effects emerge as an important factor in the biological action of such laser impulses. Laser-induced defects in the filtering zone produced by Q-switched impulses have been traced histologically.
openaire   +2 more sources

Unpolarized EO Q-switched laser

Applied Optics, 1983
A novel laser design is given that uses a special polarizing device to generate unpolarized Q-switched laser energy with a conventional EO Pockels cell. The special polarizing device, which replaces the linear polarizer normally used in conventional Q-switched resonators, allows solid-state lasers to operate efficiently at high repetition rates.
openaire   +2 more sources

Q switched Neodymium:YAG Laser Iridotomy

Ophthalmology, 1984
Twenty phakic eyes of 19 patients underwent Q-switched neodymium:YAG laser iridotomies for angle-closure glaucoma. Eleven eyes were previous argon laser failures. Penetration was achieved in each case with several shots in one session. Complications were minor and transient.
openaire   +2 more sources

Q-switching the Erbium-YAG Laser

Journal of Modern Optics, 1994
An erbium-YAG laser has been Q-switched by two methods; a mechanical technique employing a rotating output coupler and electro-optically utilizing a LiNbO3 crystal. The performances of each technique are assessed and compared. Pulse durations of 150 to 850 ns have been produced, with pulse energies of 1 to 16 mJ depending on the technique used.
Wannop, N.M., Dickinson, M.R., Charlton, A., King, T.A.   +3 more
openaire   +2 more sources

Q-switched 935 nm Nd:CNGG laser

Applied Optics, 2009
A laser diode pumped Q-switched 935 nm Nd-doped Ca(3)(NbGa)(2-x)Ga(3)O(12) (Nd:CNGG) laser using a Cr,Nd:YAG crystal as a saturable absorber is demonstrated for the first time to our knowledge. An average output power of 74 mW for 935 nmQ-switched pulses and a repetition rate of 3.788 kHz are obtained.
Qinan, Li, Baohua, Feng, Dongxiang, Zhang, Zhiguo, Zhang, Huaijin, Zhang, Jiyang, Wang   +5 more
openaire   +2 more sources

Research progress of all-solid-state passively Q-switched Er:Yb:glass lasers

, 2021
Lasers with emission wavelengths of 1.5 μm are suitable for the eye-safe band and transparency region of the atmosphere. During extremely bad weather conditions, the penetration is stronger than the traditional 1 μm and visible band; thus, they are ...
Qin Yue, Zhen-xu Bai, Yulei Wang, Xuanpu Zhang, Yaoyao Qi, Ding Jie, Z. Bai, Zhiwei Lu   +7 more
semanticscholar   +1 more source

Diode-pumped Q-switched Yb:YAG laser

Optics Letters, 1993
A cw-pumped, repetitively Q-switched, InGaAs-diode-pumped Yb:YAG laser has been demonstrated at room temperature. An output energy of as much as 72 microJ/pulse at 1.03 microm with a pulse length as short as 11 ns (FWHM) was attained. No optical damage was observed despite the high saturation fluence (~10 J/cm(2)) of the Yb:YAG laser and the short ...
T Y, Fan, S, Klunk, G, Henein
openaire   +2 more sources