Passively Q-switched diode-pumped Yb:YAG laser using Cr4+-Doped garnets

Y. Kalisky; C. Labbe; K. Waichman; L. Kravchik; U. Rachum; Peizhen Deng; Jun Xu; Jun Dong; Wei Chen

doi:10.1117/12.460816

Passively Q-switched diode-pumped Yb:YAG laser using Cr⁴⁺-Doped garnets

Y. Kalisky, C. Labbe, K. Waichman, L. Kravchik, U. Rachum, Peizhen Deng, Jun Xu, Jun Dong, Wei Chen

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

Abstract

We investigated the operation of a diode-pumped Yb:YAG laser passively Q-switched, by Cr⁴⁺:YAG, Cr⁴⁺:LuAG, and Cr⁴⁺:GSGG saturable absorbers. The results presented here are focused towards the design of a passively Q-switched Yb:YAG microlaser. The free-running performance of both rod and a disk Yb:YAG is characterized and experimental parameters such as gain and loss are evaluated. These values, together with the value of the stimulated emission cross section, e.g. σ_em=3.3×10^-20 cm² were found to fit between our experimental results and an existing numerical model which relates the experimental and physical parameters to the minimal threshold pumping power. Q-switched pulses with maximum peak power of ≈10.4-kW, and energy of ≈0.5 mJ/pulse were extracted with 30 % extraction efficiency.

Original language	English
Pages (from-to)	54-65
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4628
DOIs	https://doi.org/10.1117/12.460816
State	Published - 1 Jan 2002
Externally published	Yes

Keywords

Diode pumped lasers
Passive Q-switching
Yb:YAG laser

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.460816

Cite this

@article{12a7dd40feb54adea96e31cc4228634b,

title = "Passively Q-switched diode-pumped Yb:YAG laser using Cr4+-Doped garnets",

abstract = "We investigated the operation of a diode-pumped Yb:YAG laser passively Q-switched, by Cr4+:YAG, Cr4+:LuAG, and Cr4+:GSGG saturable absorbers. The results presented here are focused towards the design of a passively Q-switched Yb:YAG microlaser. The free-running performance of both rod and a disk Yb:YAG is characterized and experimental parameters such as gain and loss are evaluated. These values, together with the value of the stimulated emission cross section, e.g. σem=3.3×10-20 cm2 were found to fit between our experimental results and an existing numerical model which relates the experimental and physical parameters to the minimal threshold pumping power. Q-switched pulses with maximum peak power of ≈10.4-kW, and energy of ≈0.5 mJ/pulse were extracted with 30 % extraction efficiency.",

keywords = "Diode pumped lasers, Passive Q-switching, Yb:YAG laser",

author = "Y. Kalisky and C. Labbe and K. Waichman and L. Kravchik and U. Rachum and Peizhen Deng and Jun Xu and Jun Dong and Wei Chen",

note = "Funding Information: This work was supported by the “MAGNET” program of the Chief Scientist Office at the Israeli Ministry of Industry and Trade, Consortium of Diode Pumped Solid State Lasers (LESHED).",

year = "2002",

month = jan,

day = "1",

doi = "10.1117/12.460816",

language = "English",

volume = "4628",

pages = "54--65",

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T1 - Passively Q-switched diode-pumped Yb:YAG laser using Cr4+-Doped garnets

AU - Kalisky, Y.

AU - Labbe, C.

AU - Waichman, K.

AU - Kravchik, L.

AU - Rachum, U.

AU - Deng, Peizhen

AU - Xu, Jun

AU - Dong, Jun

AU - Chen, Wei

N1 - Funding Information: This work was supported by the “MAGNET” program of the Chief Scientist Office at the Israeli Ministry of Industry and Trade, Consortium of Diode Pumped Solid State Lasers (LESHED).

PY - 2002/1/1

Y1 - 2002/1/1

N2 - We investigated the operation of a diode-pumped Yb:YAG laser passively Q-switched, by Cr4+:YAG, Cr4+:LuAG, and Cr4+:GSGG saturable absorbers. The results presented here are focused towards the design of a passively Q-switched Yb:YAG microlaser. The free-running performance of both rod and a disk Yb:YAG is characterized and experimental parameters such as gain and loss are evaluated. These values, together with the value of the stimulated emission cross section, e.g. σem=3.3×10-20 cm2 were found to fit between our experimental results and an existing numerical model which relates the experimental and physical parameters to the minimal threshold pumping power. Q-switched pulses with maximum peak power of ≈10.4-kW, and energy of ≈0.5 mJ/pulse were extracted with 30 % extraction efficiency.

AB - We investigated the operation of a diode-pumped Yb:YAG laser passively Q-switched, by Cr4+:YAG, Cr4+:LuAG, and Cr4+:GSGG saturable absorbers. The results presented here are focused towards the design of a passively Q-switched Yb:YAG microlaser. The free-running performance of both rod and a disk Yb:YAG is characterized and experimental parameters such as gain and loss are evaluated. These values, together with the value of the stimulated emission cross section, e.g. σem=3.3×10-20 cm2 were found to fit between our experimental results and an existing numerical model which relates the experimental and physical parameters to the minimal threshold pumping power. Q-switched pulses with maximum peak power of ≈10.4-kW, and energy of ≈0.5 mJ/pulse were extracted with 30 % extraction efficiency.

KW - Diode pumped lasers

KW - Passive Q-switching

KW - Yb:YAG laser

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