Upconversion pumped green lasing in erbium doped fluorozirconate fibre

Whitley, T.J.; Millar, C.; Wyatt, R.; Brierley, M.C.; Szebesta, D.

doi:10.1049/el:19911110

Cited by 201 publications

(58 citation statements)

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“…Figure 8. When Er 3+ ions are excited to higher energy levels via upconversion pumping, short wavelength emissions at 544 nm, 470 nm, 402 nm, and 317 nm are possible via transitions from 4 The first demonstration of upconversion lasing in an Er 3+ -doped ZBLAN fiber was realized using a pump at 801 nm of Ti:sapphire laser [138]. Maximum output of 23 mW CW emission at a wavelength of 546 nm has been achieved with a slope efficiency of 11%.…”

Section: Upconversion Ultraviolet and Visible Zblan Fiber Lasersmentioning

confidence: 99%

High-Power ZBLAN Glass Fiber Lasers: Review and Prospect

Zhu

Peyghambarian

2010

Advances in OptoElectronics

289

110

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-NaF), considered as the most stable heavy metal fluoride glass and the excellent host for rare-earth ions, has been extensively used for efficient and compact ultraviolet, visible, and infrared fiber lasers due to its low intrinsic loss, wide transparency window, and small phonon energy. In this paper, the historical progress and the properties of fluoride glasses and the fabrication of ZBLAN fibers are briefly described. Advances of infrared, upconversion, and supercontinuum ZBLAN fiber lasers are addressed in detail. Finally, constraints on the power scaling of ZBLAN fiber lasers are analyzed and discussed. ZBLAN fiber lasers are showing promise of generating high-power emissions covering from ultraviolet to mid-infrared considering the recent advances in newly designed optical fibers, beam-shaped high-power pump diodes, beam combining techniques, and heatdissipating technology.

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Section: Upconversion Ultraviolet and Visible Zblan Fiber Lasersmentioning

confidence: 99%

High-Power ZBLAN Glass Fiber Lasers: Review and Prospect

Zhu

Peyghambarian

2010

Advances in OptoElectronics

289

110

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“…The potential applications include detection of IR radiation by conversion of the IR signal into the visible range and upconversion lasers. [1][2][3] Among rare-earth-doped glass materials, erbium-doped glasses are promising host materials because of their important optical properties, which make them suitable for applications in photonics such as lasers, optical amplifiers, and frequency upconverters. Er 3ϩ -doped waveguide laser and upconversion laser operations have been achieved at room temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Er 3ϩ -doped waveguide laser and upconversion laser operations have been achieved at room temperature. 1,2 In the near-IR spectral region, Er 3ϩ has a favorable energy-level structure with the two transitions 4 I 15/2 → 4 I 11/2 (at Ϸ980 nm) and 4 I 15/2 → 4 I 9/2 (at Ϸ800 nm), which can be efficiently excited with high-power semiconductor lasers, yielding blue, green, and red emission. An efficient upconversion laser at 540 nm pumped with a laser diode at 800 nm has been obtained with a higher efficiency than the one achieved by harmonic generation techniques.…”

Section: Introductionmentioning

confidence: 99%

“…16,17 In this work, in addition to characterizing the optical properties of Er 3ϩ ions in lead-niobium-germanate glass (60GeO 2 -25PbO-15Nb 2 O 5 ), we report a dynamic study of the IR-to-visible frequency upconversion. The study includes one-photon (OP) absorption and emission spectroscopy and lifetime measurements for the visible and IR fluorescence, and IR-to-green and IR-to-red upconversion processes for concentrations ranging from 0.5% to 3% of Er 2 . This mixture was melted in a platinum crucible placed in a vertical tubular furnace at temperature between 1100°C and 1300°C for 1 h and then poured onto a preheated brass plate, followed by 1-h annealing at 450°C and a further cooling at 1.5°C/min down to room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Infrared-to-visible upconversion of Er^3+ ions in GeO_2–PbO–Nb_2O_5 glasses

et al. 2004

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We report the infrared-to-visible upconversion luminescence of Er 3ϩ -doped lead-niobium-germanate glasses (GeO 2 -PbO-Nb 2 O 5 ) with different Er 2 O 3 concentrations (0.5, 1, 2, and 3 wt.%) under continuous-wave and pulsed-laser excitation in the near-infrared region inside the 4 I 9/2 level. Intense green emission due to the ( 2 H 11/2 , 4 S 3/2 ) → 4 I 15/2 transitions was observed at room temperature together with a weak red emission corresponding to the 4 F 9/2 → 4 I 15/2 transition. These upconversion emissions are attributed to a two-photon process. The time evolution of the green emission from the 4 S 3/2 level indicates that energy-transfer upconversion and excited-state absorption are responsible for the upconversion luminescence. The increase of the weak red emission with increasing Er 2 O 3 concentration, together with its temporal behavior under infrared excitation, suggests that for Er 2 O 3 concentrations higher than 1 wt.%, the upconverted red emission is the result of multiphonon relaxation from the 4 S 3/2 level and energy-transfer processes.

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“…[16] . The full-width at half-maximum (FWHM) bandwidth of NLG glass is 38nm, and this measured value is larger than that of Er 3+ -doped Ge/P silicate glasses (24.7nm), and comparable to that of Er 3+ -doped Al/P silicate glasses (43.3nm) [17] .…”

Section: Introductionmentioning

confidence: 99%

Optical Transitions of Erbium-doped Sodium Lanthanum Gallate Glasses

Zhang¹,

Tang²,

Zhao³

et al. 2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Abstract-Erbium ion doped sodium lanthanum gallate glasses (Na 2 O-La 2 O 3 -Ga 2 O 3 or NLG) which are suitable for use in optical waveguide devices has been fabricated and characterized. The density, the refractive indexes, the absorption and luminescence spectra along with the luminescence decay time were measured. Using the experimental oscillator strengths, the Judd-Ofelt intensity parameters Ω t were determined, and some important radiative properties were calculated. The emission peak of the 4 I 13/2 → 4 I 15/2 transition is at the 1.53-µm wavelength. The full-width at half-maximum (FWHM) bandwidth is 38 nm, which is larger than that of Er 3+ -doped Ge/P silicate glasses (24.7nm), and comparable to that of Er 3+ -doped Al/P silicate glasses (43.3nm). The lifetime of the 4 I 13/2 level is 7.03ms and the quantum efficiency is ~100%. The results show that the NLG glass is an excellent host material for applications in fiber amplifiers and waveguide lasers.

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Upconversion pumped green lasing in erbium doped fluorozirconate fibre

Cited by 201 publications

References 0 publications

High-Power ZBLAN Glass Fiber Lasers: Review and Prospect

High-Power ZBLAN Glass Fiber Lasers: Review and Prospect

Infrared-to-visible upconversion of Er^3+ ions in GeO_2–PbO–Nb_2O_5 glasses

Optical Transitions of Erbium-doped Sodium Lanthanum Gallate Glasses

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