1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramic

J. Morris; N. K. Stevenson; H. T. Bookey; A. K. Kar; C. T. A. Brown; J. -M. Hopkins; M. D. Dawson; A. A. Lagatsky

doi:10.1364/OE.25.014910

1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu₂O₃ ceramic

J. Morris, N. K. Stevenson, H. T. Bookey, A. K. Kar, C. T. A. Brown, J. -M. Hopkins, M. D. Dawson, A. A. Lagatsky

School of Physics and Astronomy

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

Abstract

The ultrafast laser inscription technique has been used to fabricate channel waveguides in Tm³⁺-doped Lu₂O₃ ceramic gain medium for the first time to our knowledge. Laser operation has been demonstrated using a monolithic microchip cavity with a continuous-wave Ti:sapphire pump source at 796 nm. The maximum output power achieved from the Tm:Lu₂O₃ waveguide laser was 81 mW at 1942 nm. A maximum slope efficiency of 9.5% was measured with the laser thresholds observed to be in the range of 50-200 mW of absorbed pump power. Propagation losses for this waveguide structure are calculated to be 0.7 dB⋅cm⁻¹ ± 0.3 dB⋅cm⁻¹ at the lasing wavelength.

Original language	English
Pages (from-to)	14910-14917
Number of pages	8
Journal	Optics Express
Volume	25
Issue number	13
Early online date	20 Jun 2017
DOIs	https://doi.org/10.1364/OE.25.014910
Publication status	Published - 26 Jun 2017

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10.1364/OE.25.014910

Morris-2017-1.9um-waveguide-laser-OpticExp-AAM
© 2017, Optical Society of America. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.osapublishing.org / https://doi.org/10.1364/OE.25.014910
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Cite this

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title = "1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramic",

abstract = "The ultrafast laser inscription technique has been used to fabricate channel waveguides in Tm3+-doped Lu2O3 ceramic gain medium for the first time to our knowledge. Laser operation has been demonstrated using a monolithic microchip cavity with a continuous-wave Ti:sapphire pump source at 796 nm. The maximum output power achieved from the Tm:Lu2O3 waveguide laser was 81 mW at 1942 nm. A maximum slope efficiency of 9.5\% was measured with the laser thresholds observed to be in the range of 50-200 mW of absorbed pump power. Propagation losses for this waveguide structure are calculated to be 0.7 dB⋅cm−1 ± 0.3 dB⋅cm−1 at the lasing wavelength.",

author = "J. Morris and Stevenson, \{N. K.\} and Bookey, \{H. T.\} and Kar, \{A. K.\} and Brown, \{C. T. A.\} and Hopkins, \{J. -M.\} and Dawson, \{M. D.\} and Lagatsky, \{A. A.\}",

note = "Funding: UK Engineering and Physical Sciences Research Council (EPSRC) (EP/G037523/1, EP/L01596X/1).",

year = "2017",

month = jun,

day = "26",

doi = "10.1364/OE.25.014910",

language = "English",

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T1 - 1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramic

AU - Morris, J.

AU - Stevenson, N. K.

AU - Bookey, H. T.

AU - Kar, A. K.

AU - Brown, C. T. A.

AU - Hopkins, J. -M.

AU - Dawson, M. D.

AU - Lagatsky, A. A.

N1 - Funding: UK Engineering and Physical Sciences Research Council (EPSRC) (EP/G037523/1, EP/L01596X/1).

PY - 2017/6/26

Y1 - 2017/6/26

N2 - The ultrafast laser inscription technique has been used to fabricate channel waveguides in Tm3+-doped Lu2O3 ceramic gain medium for the first time to our knowledge. Laser operation has been demonstrated using a monolithic microchip cavity with a continuous-wave Ti:sapphire pump source at 796 nm. The maximum output power achieved from the Tm:Lu2O3 waveguide laser was 81 mW at 1942 nm. A maximum slope efficiency of 9.5% was measured with the laser thresholds observed to be in the range of 50-200 mW of absorbed pump power. Propagation losses for this waveguide structure are calculated to be 0.7 dB⋅cm−1 ± 0.3 dB⋅cm−1 at the lasing wavelength.

AB - The ultrafast laser inscription technique has been used to fabricate channel waveguides in Tm3+-doped Lu2O3 ceramic gain medium for the first time to our knowledge. Laser operation has been demonstrated using a monolithic microchip cavity with a continuous-wave Ti:sapphire pump source at 796 nm. The maximum output power achieved from the Tm:Lu2O3 waveguide laser was 81 mW at 1942 nm. A maximum slope efficiency of 9.5% was measured with the laser thresholds observed to be in the range of 50-200 mW of absorbed pump power. Propagation losses for this waveguide structure are calculated to be 0.7 dB⋅cm−1 ± 0.3 dB⋅cm−1 at the lasing wavelength.

UR - https://www.scopus.com/pages/publications/85021213756

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DO - 10.1364/OE.25.014910

M3 - Article

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EP - 14917

JO - Optics Express

JF - Optics Express

IS - 13

ER -

1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu₂O₃ ceramic

Abstract

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CDT Applied Photonics with Heriot Watt: Heriot-Watt led Applied Photonics Centre for Doctoral Training

C Tom A Brown

Diode-pumped Tm³⁺-doped sesquioxide lasers for ultrashort pulse applications in the 2μm region

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1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramic

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Diode-pumped Tm³⁺-doped sesquioxide lasers for ultrashort pulse applications in the 2μm region

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1.9 µm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu₂O₃ ceramic