Widely tunable S-band fiber-ring lasers and broadband amplified spontaneous emission sources with thulium-doped fluoride fibers

Chen, H.; Babin, F.; LeBlanc, Michel; He, Gang; Schinn, G.W.

doi:10.1109/jlt.2003.814931

Cited by 17 publications

(5 citation statements)

References 18 publications

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“…Now, the development of low-loss fibers has allowed Tm 3+ -doped fluoride or silica fiber amplifiers to produce effective amplifications from 1450 to 1520 nm. [2] In addition to the 1.4 lm emission band, a large amount of research is also being carried out to develop the 1.8 lm emission band of thulium, which has become of interest for light detection and ranging (LIDAR), remote sensing, and potential medical laser applications. [3] Other important applications of Tm 3+ -doped materials have occurred in the field of nanoparticle up-conversion technology, [4][5][6][7][8][9] where excitation with low energy (e.g., near-IR light) results in higher energy emission (e.g., visible region), and are being developed for, among others, display technology (flatscreen display), [4,10] blue-laser diodes, [11] and biolabel technology.…”

Section: Introductionmentioning

confidence: 99%

Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

Diamente

Raudsepp

Veggel

2007

Adv Funct Materials

108

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A general procedure is described for the synthesis and conversion of dispersible core/shell LaF3:Tm/LaF3 nanoparticles to highly dispersible thulium‐doped lanthanum disilicate nanoparticles (La2Si2O7:Tm) with an average diameter of 7 nm that show emission at a wavelength of 1.47 μm. Measurement of the citrate‐stabilized precursor nanoparticles in a KBr pellet shows a 1.47 μm emission with an effective lifetime of only 3 μs and an estimated quantum yield of ≪ 1 %. However, significant improvements to the emission properties are obtained by forming a ca. 1 nm thick silica shell around the nanoparticles via a modified Stöber method, followed by baking at 900 °C for 12 h to convert the LaF3 matrix to La2Si2O7. Excitation with a 785 nm continuous wave (CW) diode laser results in the luminescence of the 3H4–3F4 transition at 1.47 μm with an effective lifetime of 56 μs and an estimated quantum yield of 4 %. High‐resolution measurements at 77 K are carried out in order to improve the resolution of the crystal‐field splitting observed from the 3H4 level.

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Section: Introductionmentioning

confidence: 99%

Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

Diamente

Raudsepp

Veggel

2007

Adv Funct Materials

108

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“…The TFF has a thulium dopant concentration of about 3200 ppm mol with an absorption rate of 0.15 dB m −1 at a wavelength of 1400 nm as well as a mode-field diameter of 4.5 µm at 1500 nm and a numerical aperture value of 0.26. Through multi-level pumping, the thulium electrons are excited from the 3 H 6 to the 3 H 4 state, with emissions resulting from the relaxation of the excited electrons from 3 H 4 to 3 F 4 , thus providing gain in the S-band region [47]. A laboratory specification optical spectrum analyzer (OSA) and an optical power meter (OPM) is used to capture the output spectrum and power respectively from the TFF.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…The proposed system is capable of generating a Q-switched output with a maximum repetition rate and a minimum pulse width of 36.3 kHz and 3.2 µs respectively, as well as average output power and a pulse energy of 0.76 mW and 20.9 nJ respectively. Furthermore, the proposed system is pumped at a single wavelength of 1400 nm, which provides a highly cost-effective and easily obtainable solution for pumping the TFF as compared to earlier methods requiring multiple pump sources at different wavelengths [47].…”

Section: Introductionmentioning

confidence: 99%

S-band Q-switched thulium fluoride fiber laser using graphene saturable absorber

et al. 2017

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A Q-switched S-band thulium fluoride fiber (TFF) driven by a 1400 nm laser diode is proposed and demonstrated. The TFF has the advantage of being pumped at 1400 nm, which is an easily available and relatively low-cost pump source, as opposed to conventional pumping at 1050 nm. It has a gain profile from 1440 nm to 1520 nm, and Q-switching is realized with the use of a thin film graphene saturable absorber. The Q-switched TFF laser exhibits a maximum repetition rate and minimum pulse width of 36.3 kHz and 3.2 µs respectively, as well as an average output power and pulse energy of 0.76 mW and 20.9 nJ at a maximum pump power of 230.4 mW. The output pulses are highly stable, and to the best knowledge of the authors this is the first demonstration of a Q-switched TFF laser pumped at 1400 nm.

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“…The attainment of population inversion becomes difficult via direct pumping at either 676 nm or 790 nm [16,17]. Although the latter challenge can be addressed using pump wavelengths around 1500 nm, the host materials with low phonon energies are still rare [18]. Recent advancements in fluoride fiber fabrication have addressed this limitation, enabling the commercial production of TDFFs.…”

Section: Introductionmentioning

confidence: 99%

Generation of mode-locked thulium doped fluoride fiber laser using graphene-zinc oxide (G-ZnO) coated dual arc-shaped fiber

Ahmad,

Nizamani,

Seiger

2023

Phys. Scr.

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In this work, mode-locked laser generation at the S-band region was achieved using a graphene-zinc oxide (G-ZnO) coated dual arc-shaped fiber as a saturable absorber (SA) within a thulium-doped fluoride fiber (TDFF) ring cavity. Two-step polishing was implemented to fabricate a dual arc-shaped fiber, and a G-ZnO solution was then deposited on the dual arc region via the drop-casting method to form the SA. Mode-locked pulses were generated by incorporating the G-ZnO-based SA into the TDFF ring cavity, with the pulses having a central wavelength, 3 dB bandwidth and pulse duration of 1503.4 nm, 0.68 nm and 3.52 ps, respectively. At the maximum pump power of 202 mW, an average output power of 2.47 mW was obtained with a maximum pulse energy of 6.16 nJ and a peak power of 1.75 kW. At this pump power, the generated pulses have a frequency of 401.6 kHz with a signal-to-noise ratio (SNR) of 54 dB. The mode-locking threshold was at a pump power of 118 mW. The results obtained in this work indicate the potential of a new class of 2D composite materials which can be used as nonlinear optical devices.

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Widely tunable S-band fiber-ring lasers and broadband amplified spontaneous emission sources with thulium-doped fluoride fibers

Cited by 17 publications

References 18 publications

Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

S-band Q-switched thulium fluoride fiber laser using graphene saturable absorber

Generation of mode-locked thulium doped fluoride fiber laser using graphene-zinc oxide (G-ZnO) coated dual arc-shaped fiber

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Widely tunable S-band fiber-ring lasers and broadband amplified spontaneous emission sources with thulium-doped fluoride fibers

Cited by 17 publications

References 18 publications

Dispersible Tm3+‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

Dispersible Tm3+‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

S-band Q-switched thulium fluoride fiber laser using graphene saturable absorber

Generation of mode-locked thulium doped fluoride fiber laser using graphene-zinc oxide (G-ZnO) coated dual arc-shaped fiber

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Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence

Dispersible Tm³⁺‐Doped Nanoparticles that Exhibit Strong 1.47 μm Photoluminescence