Zobrazeno 1 - 10
of 46
pro vyhledávání: '"77"'
Autor:
Jan Šulc, Helena Jelínková, A. N. Nakladov, Vasilii A. Konyushkin, Michal Němec, Maxim E. Doroshenko, V. V. Osiko, Karel Veselský
Publikováno v:
SPIE Proceedings.
The goal of this work was an investigation of the temperature influence (in range 77 - 300 K) on laser properties of Tm:SrF2-CaF2 solid-solution, which is suitable as a gain medium for generation of radiation at 1.8-2 μm. The tested Tm:SrF2-CaF2 sam
Publikováno v:
SPIE Proceedings.
We report on an ytterbium-doped fiber laser (FL) pumped by an Yb:YAG thin disk laser [1]. The FL essentially acts as a brilliance converter suitable for applications requiring a diffraction limited kilowatt-class laser source. The FL can be positione
Autor:
M.A. Remennyi, Georgii N. Talalakin, Nikolai M. Stus, S. A. Karandashev, B. A. Matveev, Meyrhan Aydaraliev, Nonna V. Zotova
Publikováno v:
SPIE Proceedings.
Multimode pulse (P equals 1.56 W, I equals 9.5 A) and CW (P equals 160 mW, I equals 1 A) operation is reported at 77 K for the broad (w equals 200 micrometer) contact InGaAsSb(Gd)/InAsSbP diode lasers with (lambda) equals 3.0 divided by 3.3 micromete
Autor:
R.J. Menna, M. J. Yang, A.R. Sugg, Donna W. Stokes, Linda J. Olafsen, William W. Bewley, Edward H. Aifer, Gregory H. Olsen, Ramon U. Martinelli, M. Maiorov, Jerry R. Meyer, John C. Connolly, Hao Lee, Christopher L. Felix, I. Vurgaftman, Dmitri Z. Garbuzov
Publikováno v:
SPIE Proceedings.
Recent progress towards the realization of high-power, non- cryogenic (quasi-)cw mid-IR lasers based on the `W' configuration of the active region is reported. Type-II diodes with AlGaAsSb broadened-waveguide separate confinement regions are the firs
Publikováno v:
SPIE Proceedings.
Upconversion has been an active area of research for at least two decades, mainly because of its wide ranging applications from infrared quantum counters, visible-emitting phosphors, to upconversion lasers. The upconversion lasers have recently becom
Autor:
Maxim E. Doroshenko, Richard Švejkar, Andrei N. Nakladov, Jan Šulc, V. V. Osiko, Helena Jelínková, Vasilii A. Konyushkin
Publikováno v:
High-Power, High-Energy, and High-Intensity Laser Technology IV.
The free-running and passive Q-switched laser properties of Er,La:SrF2-CaF2 crystal, that is appropriate for generation at 2.74 μm, are presented. The sample of Er,La:SrF2-CaF2 (composition 4 wt.% of ErF3, 12 wt.% of LaF3, 77 wt.% of CaF2, and 7 wt.
Autor:
Brendan A. Reagan, Elzbieta Jankowska, Hanchen Wang, Carmen S. Menoni, Alexander R. Meadows, Jorge J. Rocca
Publikováno v:
Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference.
The demonstration of a Yb:YAG chirped pulse amplification laser producing 1 J, 5 ps pulses at 500 Hz repetition rate [1] and recently 1 J pulses at 1 kHz repetition rate [2] relied on efficient thermal management and high performance multilayer diele
Autor:
Artur Trajnerowicz, Marek Wzorek, Maciej Kuc, Norbert Palka, Renata Kruszka, Kamil Kosiel, Michał Walczakowski, Piotr Karbownik, Tomasz Czyszanowski, Anna Szerling, Krystyna Gołaszewska
Publikováno v:
SPIE Proceedings.
Conditions of fabrication of first order distributed-feedback surface gratings designed for single-mode Al 0.45 Ga 0.55 As/GaAs quantum cascades lasers with the emission wavelength of about 10μm are presented. The 1 μm-deep rectangular-shaped grati
Publikováno v:
High-Power Diode Laser Technology and Applications XIII.
An front facet-low reflection coated broad-area laser(BAL) diode with an emitter size of 50 μm x 1 μm and a chip length of 2000 μm is operated in the external cavity diode laser(ECDL). For wavelength stabilization and narrow spectral width, the di
Publikováno v:
SPIE Proceedings.
The performance of a solid-state optical refrigerator is the result of a complex interplay of numerous optical and thermal parameters. We present a first preliminary study of an optical cryocooler using ray-tracing techniques. A numerical optimizatio