High-energy resonantly diode-pumped Q-switched Ho3+:YAG laser

A. Berrou; T. Ibach; M. Eichhorn

doi:10.1007/s00340-015-6108-y

High-energy resonantly diode-pumped Q-switched Ho³⁺:YAG laser

A. Berrou^*, T. Ibach, M. Eichhorn

^*Corresponding author for this work

School of Engineering & Physical Sciences

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

24 Citations (Scopus)

Abstract

We report on a Q-switched Ho³⁺:YAG laser resonantly pumped by fiber-coupled high-spectral-brightness laser diodes emitting at 1.91 μm. Using a 75-mm-long composite crystal pumped by two fiber-coupled diode modules, 18 W was obtained at a wavelength of 2121 nm for 53 W of injected power with a slope efficiency of 51 % with respect to absorbed power. The beam propagation factor (M²) was measured to be 1.2 at the maximum output power. The laser performance in Q-switched operation was recorded for different repetition rates between 100 Hz and 20 kHz. A maximum output energy of 8.7 mJ was measured at 1 kHz repetition rate.

Original language	English
Pages (from-to)	105-110
Number of pages	6
Journal	Applied Physics B: Lasers and Optics
Volume	120
Issue number	1
DOIs	https://doi.org/10.1007/s00340-015-6108-y
Publication status	Published - Jul 2015

Keywords

ER3+YAG LASER
HIGH-POWER

Access to Document

10.1007/s00340-015-6108-y

Cite this

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title = "High-energy resonantly diode-pumped Q-switched Ho3+:YAG laser",

abstract = "We report on a Q-switched Ho3+:YAG laser resonantly pumped by fiber-coupled high-spectral-brightness laser diodes emitting at 1.91 μm. Using a 75-mm-long composite crystal pumped by two fiber-coupled diode modules, 18 W was obtained at a wavelength of 2121 nm for 53 W of injected power with a slope efficiency of 51 % with respect to absorbed power. The beam propagation factor (M2) was measured to be 1.2 at the maximum output power. The laser performance in Q-switched operation was recorded for different repetition rates between 100 Hz and 20 kHz. A maximum output energy of 8.7 mJ was measured at 1 kHz repetition rate.",

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T1 - High-energy resonantly diode-pumped Q-switched Ho3+:YAG laser

AU - Berrou, A.

AU - Ibach, T.

AU - Eichhorn, M.

PY - 2015/7

Y1 - 2015/7

N2 - We report on a Q-switched Ho3+:YAG laser resonantly pumped by fiber-coupled high-spectral-brightness laser diodes emitting at 1.91 μm. Using a 75-mm-long composite crystal pumped by two fiber-coupled diode modules, 18 W was obtained at a wavelength of 2121 nm for 53 W of injected power with a slope efficiency of 51 % with respect to absorbed power. The beam propagation factor (M2) was measured to be 1.2 at the maximum output power. The laser performance in Q-switched operation was recorded for different repetition rates between 100 Hz and 20 kHz. A maximum output energy of 8.7 mJ was measured at 1 kHz repetition rate.

AB - We report on a Q-switched Ho3+:YAG laser resonantly pumped by fiber-coupled high-spectral-brightness laser diodes emitting at 1.91 μm. Using a 75-mm-long composite crystal pumped by two fiber-coupled diode modules, 18 W was obtained at a wavelength of 2121 nm for 53 W of injected power with a slope efficiency of 51 % with respect to absorbed power. The beam propagation factor (M2) was measured to be 1.2 at the maximum output power. The laser performance in Q-switched operation was recorded for different repetition rates between 100 Hz and 20 kHz. A maximum output energy of 8.7 mJ was measured at 1 kHz repetition rate.

KW - ER3+YAG LASER

KW - HIGH-POWER

U2 - 10.1007/s00340-015-6108-y

DO - 10.1007/s00340-015-6108-y

M3 - Article

SN - 0946-2171

VL - 120

SP - 105

EP - 110

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 1