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

James Morris; N. K. Stevenson; Henry T. Bookey; Ajoy Kumar Kar; Christian T. A. Brown; J.-M. Hopkins; M. D. Dawson; Alexander Lagatsky

doi:10.1364/OE.25.014910

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

James Morris, N. K. Stevenson, Henry T. Bookey, Ajoy Kumar Kar, Christian T. A. Brown, J.-M. Hopkins, M. D. Dawson, Alexander Lagatsky

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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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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 = "James Morris and Stevenson, {N. K.} and Bookey, {Henry T.} and Kar, {Ajoy Kumar} and Brown, {Christian T. A.} and J.-M. Hopkins and Dawson, {M. D.} and Alexander Lagatsky",

year = "2017",

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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, James

AU - Stevenson, N. K.

AU - Bookey, Henry T.

AU - Kar, Ajoy Kumar

AU - Brown, Christian T. A.

AU - Hopkins, J.-M.

AU - Dawson, M. D.

AU - Lagatsky, Alexander

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.

U2 - 10.1364/OE.25.014910

DO - 10.1364/OE.25.014910

M3 - Article

C2 - 28789073

SN - 1094-4087

VL - 25

SP - 14910

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

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