Results 21 to 30 of about 10,369 (263)

Diode-pumped Yb:GSO femtosecond laser

open access: yesOptics Express, 2007
Compact femtosecond laser operation of Yb:Gd(2)SiO(5) (Yb:GSO) crystal was demonstrated under high-brightness diode-end-pumping. A semiconductor saturable absorption mirror was used to start passive mode-locking. Stable mode-locking could be realized near the emission bands around 1031, 1048, and 1088 nm, respectively.
Wenxue, Li   +8 more
openaire   +2 more sources

300-mW average power in 22-fs pulses from a multi-mode diode pumped Yb:CALGO oscillator [PDF]

open access: yesEPJ Web of Conferences
We present a multi-mode diode-pumped Yb:CALGO laser oscillator based on cross-polarization pumping. Using this method, we demonstrate 22-fs pulses at 0.3 W, which is the shortest duration for any Yb- based bulk laser oscillator utilizing multimode-diode ...
Trawi F.   +5 more
doaj   +1 more source

Electrical Pumping of Perovskite Diodes: Toward Stimulated Emission

open access: yesAdvanced Science, 2021
The success of metal halide perovskites in photovoltaic and light‐emitting diodes (LEDs) motivates their application as a solid‐state thin‐film laser. Various perovskites have shown optically pumped stimulated emission of lasing and amplified spontaneous
Changsoon Cho   +8 more
doaj   +1 more source

Joule-Level Twelve-Pass LD End-Pumped Bonded Neodymium Glass Laser Amplifier

open access: yesPhotonics, 2021
This paper reports on a Joule-level multi-pass laser amplification device with diode end-pumped square-rod neodymium glass (Nd:glass) bonded to K9 glass. The device generated 1.17 J pulse energy at 1 Hz and 1053 nm.
Long Pan   +8 more
doaj   +1 more source

Diode pumped yellow dysprosium lasers

open access: yesOptics Express, 2012
First operation of the 4F₉/₂ → 6H₁₃/₂ laser transition in dysprosium doped yttrium aluminum garnet is reported. Efficient room temperature operation at 583 nm was obtained using 447 nm GaN diode lasers pumps. Gaussian single-mode operation was demonstrated with a non-optimized slope efficiency of 12%.
S R, Bowman, S, O'Connor, N J, Condon
openaire   +2 more sources

Distributed and Side-Pumped Fiber Laser Using a Laser Diode Bar Stack

open access: yesIEEE Access, 2018
A distributed, side-pumped Yb3+-doped fiber laser is demonstrated using a laser diode stack as a pump source. Four subwavelength gratings fabricated on the same fused-silica substrate were aligned with four laser diode bars of the laser diode stack ...
Yin-Wen Lee   +6 more
doaj   +1 more source

Investigation on efficiency declines due to spectral overlap between LDAs pump and laser medium in high power double face pumped slab laser

open access: yesResults in Physics, 2018
In high power diode lasers, the input cooling water temperature would affect both output power and output spectrum. In double face pumped slab laser, the spectrum of two laser diode arrays (LDAs) must be optimized for efficiency reason.
Ye Lang   +5 more
doaj   +1 more source

Efficient long-wave infrared ZGP optical parametric oscillator pumped by a diode-pumped AO Q-switched Ho:YAG laser

open access: yesFrontiers in Physics
We describe an efficient long-wave infrared optical parametric oscillator based on ZnGeP2 crystal pumped by a diode-pumped AO Q-switched Ho:YAG laser in this paper.
Zuoxun Hou, Song Yang, Guoxian Zheng
doaj   +1 more source

Diode-Pumped MIR Supercontinuum

open access: yesDanish Optical Society Congress 2022 (DOPS), 2022
Optical coherence tomography (OCT) can be utilized as a non-destructive testing (NDT) technique within manufacturing, saving resources, time and money. MIR OCT systems (rather than NIR) are attractive since longer wavelengths scatter less and penetrate deeper. Here we present progress towards a compact, flexible, diode-pumped MIR supercontinuum source.
openaire   +1 more source

OLED-Pumped Organic Laser Diode

open access: yesPhotonics
A theoretical analysis is presented for a recently proposed high-speed µ-OLED optically pumped organic laser. We confirm that for this configuration, the laser threshold is reached at a lower current density than in the case of a direct-electrically ...
Daan Lenstra, Alexis Fischer
doaj   +1 more source

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