H2020Индивидуална стипендия2015–2017

TDL2Ho · Thin-disk lasers for the 2-micron spectral range based on Ho-doped monoclinic double-tungstate epitaxial structures

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2015-06-01 → 2017-05-31
Финансиране от ЕС: 171 461 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Тънкослойните лазери с холмий и специални кристални структури се тестват за работа при стайна температура. Тези устройства подобряват ефективността и компактността на лазери, използвани в медицината, отбраната и обработката на материали.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Thin-disk lasers for the 2-micron spectral range based on Ho-doped monoclinic double-tungstate epitaxial structures

Eye safe lasers emitting in the 2-µm spectral range have potential applications in medicine, material processing and defence and security among others. Short pulse (ns) lasers are employed as pump sources for optical parametric oscillators (OPOs), for extension to the mid-infrared (MIR) spectral range. All such applications will benefit from the power scaling, increased efficiency and compact design, aimed in this project and provided by the thin-disk laser concept. Reports on 2-µm lasers with thin-disk geometry are scarce and describe complex architectures. In previous experiments, negative temperature of the heat sink was applied in the crystal with only 4 bounces of the pump. Room temperature operation required 12 bounces of the pump beam for high absorption in the crystal. The research activities planned in the present project were devoted to development, test and characterization of novel thin-disk structures based on epitaxially grown monoclinic double tungstate (MDT) crystals for use in high average and peak power all-solid-state laser systems operating in the important 2-µm spectral range. The laser gain is based on the Holmium (Ho) trivalent ion operating slightly above 2-µm. The Ho ion can be excited directly into the upper laser level, producing less heat and enabling power scaling with diode pumping. The general objective was to realize novel compact and efficient Ho-based epitaxial lasers with thin-disk design and greatly simplified pump geometry based on a single bounce of the pump due to its advantageous spectroscopic features. It consisted of 4 specific objectives: Preparation of thin disk elements based on KLu(WO4)2 (KLuW) epitaxies and characterization, laser operation with epitaxial co-doped Tm,Ho:KLuW and singly-doped Ho:KYW thin disks, laser operation in different temporal regimes with Ho thin disks, and high-power and high efficiency operation in comparison with other designs and pump concepts.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The research activities planned will be devoted to development, test and characterization of novel thin-disk structures based on epitaxially grown monoclinic double tungstate crystals for use in high average /peak power all-solid-state laser systems operating in the important 2-µm spectral range. Laser gain will rely on the Holmium (Ho) trivalent ion which is potentially very suitable for high energy due to its advantageous spectroscopic features. The latter allow one to excite it directly into the upper laser level, producing less heat and enabling power scaling with diode pumping. Moreover, wavelengths slightly above 2 µm, emitted from such tunable Ho-lasers, are attractive for various applications.

Оригинален текст от CORDIS (на английски).

Участници

FORSCHUNGSVERBUND BERLIN EV · BerlinКоординаторГермания