pimiПриборы и методы измеренийDevices and Methods of Measurements2220-95062414-0473BNTU10.21122/2220-9506-2020-11-3-179-186pimi-661Research ArticleСредства измеренийMeasuring instrumentsВысокомощный лазер на кристалле Yb3+:YAlO3, работающий в режиме синхронизации мод на основе полупроводниковых зеркал с насыщающимся поглотителемHigh Power SESAM Mode-Locked Laser Based on Yb3+:YAlO3 Bulk CrystalРуденковА.RudenkovA.

Адрес для переписки: Александр Руденков  -  Центр оптических материалов и технологий, Белорусский национальный технический университет, пр-т Независимости, 65, г. Минск 220013, Беларусь 

e-mail: a.rudenkov@bntu.by

Address for correspondence: Alexander Rudenkov – Center for Optical Materials and Technologies, Belarusian National Technical University, Nezavisimosty Ave., 65, Minsk 220013, Belarus e-mail: a.rudenkov@bntu.by

a.rudenkov@bntu.byКисельВ.KiselV.

Виктор Кисель

пр-т Независимости, 65, Минск 220013

Viktor Kise

Nezavisimosty Ave., 65, Minsk 220013

ЯсюкевичА.YasukevichA.

Анатолий Ясюкевич

пр-т Независимости, 65, Минск 220013

Anatol Yasukevich

Nezavisimosty Ave., 65, Minsk 220013

ОванесьянК.HovhannesyanK.

Карин Ованесьян

0203, Аштарак-2

Karine Hovhannesyan

0203, Ashtarak-2, Armenia

ПетросянА.PetrosyanA.

Ашот Петросян

0203, Аштарак-2

Ashot Petrosyan

0203, Ashtarak-2, Armenia

КулешовН.KuleshovN.

Николай Кулешов

пр-т Независимости, 65, Минск 220013

Nikolai Kuleshov 

Nezavisimosty Ave., 65, Minsk 220013

Центр оптических материалов и технологий, Белорусский национальный технический университетБеларусьCenter for Optical Materials and Technologies, Belarusian National Technical UniversityBelarusИнститут физических исследований Национальной академии наук АрменииАрменияInstitute for Physical Research, National Academy of Sciences of ArmeniaArmenia202022092020113179186Copyright © Руденков А., Кисель В., Ясюкевич А., Ованесьян К., Петросян А., Кулешов Н., 20202020Руденков А., Кисель В., Ясюкевич А., Ованесьян К., Петросян А., Кулешов Н.Rudenkov A., Kisel V., Yasukevich A., Hovhannesyan K., Petrosyan A., Kuleshov N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://pimi.bntu.by/jour/article/view/661

Кристаллы иттрий-алюминиевого перовскита YAlO3 (YAP), легированные ионами редкоземельных элементов интенсивно изучались в качестве активных сред лазеров с диодной накачкой. Интерес к данным кристаллам обусловлен их высокими теплофизическими и механическими свойствами, высоким двулучепреломлением, возможностью роста по широко распространённому методу Чохральского. Целью данной работы было изучение кристалла Yb3+:YAlO3  в качестве активной среды лазера  с высокой средней выходной мощностью, работающего в режиме синхронизации мод.

Кристаллы YAlO3, легированные трёхвалентными ионами иттербия имеют уникальные спектроскопические и теплофизические свойства, что позволяет использовать данные кристаллы в качестве активных сред лазеров с высокой средней выходной мощностью и диодной накачкой, работающих в режимах непрерывной генерации и пассивной синхронизации мод.

В работе исследованы спектроскопические характеристики кристалла Yb:YAP, а также выходные характеристики лазеров на основе данного кристалла, работающих в режимах непрерывной генерации и пассивной синхронизации мод. Средняя выходная мощность 4 Вт с оптической эффективностью 16.3 % и длительностью импульса 140 фс получена для E//c-поляризации при пропускании выходного зеркала 10 %. Диапазон перестройки 67 нм подтверждает высокие перспективы использования кристалла Yb:YAP в качестве активной среды лазеров, работающих в широком спектральном диапазоне.

Yttrium aluminium perovskite YAlO3 (YAP) crystal, doped with rare-earth ions, has been extensively studied as a diode-pumped laser host material. The wide interest to rare-earth ions doped YAP crystals is explained by its good thermal and mechanical properties, high natural birefringence, widely used Czochralski  growth method. The aim of this work was to study the Yb3+:YAlO3  crystal as an active medium for high  power mode-locked laser.

Yb3+-doped perovskite-like aluminate crystals have unique spectroscopic and thermooptical properties that allowed using these crystals as an active medium of high power continuous wave (CW) and modelocked (ML) bulk lasers with diode pumping.growth method. The aim of this work was to study the Yb3+:YAlO3  crystal as an active medium for high  power mode-locked laser.

In our work spectroscopic properties of Yb:YAP crystal and laser characteristics in CW and ML regimes are investigated. Maximum output power of 4 W with optical-to-optical efficiency of 16.3 % and 140 fs pulse duration have been obtained for Yb:YAP E //c-polarization with 10 % output coupler transmittance. Tunability range as wide as 67 nm confirms high promise of using Yb:YAP crystal for lasers working in wide spectral range.

 

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The authors declare that there are no conflicts of interest present.