Self-Q-switched and widely tunable continuous-wave operation of a Tm3+:Lu2O3 ceramic laser near 2 μm

Suat Icli; Yagiz Morova; Umut Aydemir; Alphan Sennaroglu

doi:10.1016/j.optmat.2023.113801

Self-Q-switched and widely tunable continuous-wave operation of a Tm³⁺:Lu₂O₃ ceramic laser near 2 μm

Suat Icli, Yagiz Morova, Umut Aydemir, Alphan Sennaroglu^*

^*Corresponding author for this work

Koc University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We report, for the first time to our knowledge, self-Q-switched (SQS) operation of a Tm³⁺:Lu₂O₃ ceramic laser near 2 μm based on the ³F₄→³H₆ optical transition. By careful optimization of cavity focusing, SQS operation could be achieved at several curved mirror separations without any external modulator and the laser delivered 9.7-μs pulses at the wavelength of 2091 nm with a pulse repetition rate of 26 kHz. In the experiments, a tight-focusing resonator design was further employed to achieve low-threshold continuous-wave (CW) operation of the laser with lasing threshold pump powers as low as 33 mW. With an incident pump power of 590 mW at 776 nm, a maximum output power of 164 mW was obtained at 2097 nm with a slope efficiency of 30% with respect to the incident pump power. The tuning range of the CW Tm³⁺:Lu₂O₃ ceramic laser could be extended up to the wavelength of 2235 nm.

Original language	English
Article number	113801
Journal	Optical Materials
Volume	139
DOIs	https://doi.org/10.1016/j.optmat.2023.113801
Publication status	Published - May 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Keywords

Infrared laser materials
Laser ceramics
Self Q-switching
Solid-state lasers
Thulium lasers

Access to Document

10.1016/j.optmat.2023.113801

Cite this

@article{a3856c257e634b0b88b37750d64b0349,

title = "Self-Q-switched and widely tunable continuous-wave operation of a Tm3+:Lu2O3 ceramic laser near 2 μm",

abstract = "We report, for the first time to our knowledge, self-Q-switched (SQS) operation of a Tm3+:Lu2O3 ceramic laser near 2 μm based on the 3F4→3H6 optical transition. By careful optimization of cavity focusing, SQS operation could be achieved at several curved mirror separations without any external modulator and the laser delivered 9.7-μs pulses at the wavelength of 2091 nm with a pulse repetition rate of 26 kHz. In the experiments, a tight-focusing resonator design was further employed to achieve low-threshold continuous-wave (CW) operation of the laser with lasing threshold pump powers as low as 33 mW. With an incident pump power of 590 mW at 776 nm, a maximum output power of 164 mW was obtained at 2097 nm with a slope efficiency of 30\% with respect to the incident pump power. The tuning range of the CW Tm3+:Lu2O3 ceramic laser could be extended up to the wavelength of 2235 nm.",

keywords = "Infrared laser materials, Laser ceramics, Self Q-switching, Solid-state lasers, Thulium lasers",

author = "Suat Icli and Yagiz Morova and Umut Aydemir and Alphan Sennaroglu",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = may,

doi = "10.1016/j.optmat.2023.113801",

language = "English",

volume = "139",

journal = "Optical Materials",

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TY - JOUR

T1 - Self-Q-switched and widely tunable continuous-wave operation of a Tm3+:Lu2O3 ceramic laser near 2 μm

AU - Icli, Suat

AU - Morova, Yagiz

AU - Aydemir, Umut

AU - Sennaroglu, Alphan

PY - 2023/5

Y1 - 2023/5

N2 - We report, for the first time to our knowledge, self-Q-switched (SQS) operation of a Tm3+:Lu2O3 ceramic laser near 2 μm based on the 3F4→3H6 optical transition. By careful optimization of cavity focusing, SQS operation could be achieved at several curved mirror separations without any external modulator and the laser delivered 9.7-μs pulses at the wavelength of 2091 nm with a pulse repetition rate of 26 kHz. In the experiments, a tight-focusing resonator design was further employed to achieve low-threshold continuous-wave (CW) operation of the laser with lasing threshold pump powers as low as 33 mW. With an incident pump power of 590 mW at 776 nm, a maximum output power of 164 mW was obtained at 2097 nm with a slope efficiency of 30% with respect to the incident pump power. The tuning range of the CW Tm3+:Lu2O3 ceramic laser could be extended up to the wavelength of 2235 nm.

AB - We report, for the first time to our knowledge, self-Q-switched (SQS) operation of a Tm3+:Lu2O3 ceramic laser near 2 μm based on the 3F4→3H6 optical transition. By careful optimization of cavity focusing, SQS operation could be achieved at several curved mirror separations without any external modulator and the laser delivered 9.7-μs pulses at the wavelength of 2091 nm with a pulse repetition rate of 26 kHz. In the experiments, a tight-focusing resonator design was further employed to achieve low-threshold continuous-wave (CW) operation of the laser with lasing threshold pump powers as low as 33 mW. With an incident pump power of 590 mW at 776 nm, a maximum output power of 164 mW was obtained at 2097 nm with a slope efficiency of 30% with respect to the incident pump power. The tuning range of the CW Tm3+:Lu2O3 ceramic laser could be extended up to the wavelength of 2235 nm.

KW - Infrared laser materials

KW - Laser ceramics

KW - Self Q-switching

KW - Solid-state lasers

KW - Thulium lasers

UR - https://www.scopus.com/pages/publications/85152476727

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DO - 10.1016/j.optmat.2023.113801

M3 - Article

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SN - 0925-3467

VL - 139

JO - Optical Materials

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