Mid-infrared emission properties and energy transfer evaluation in Tm3+ doped fluorophosphate glasses

Li, Rubing; Tian, Cong; Tian, Ying; Li, Bingpeng; Jing, Xufeng; Ruan, Fengping; Wang, Fengchao

doi:10.1016/j.jlumin.2015.02.016

Cited by 36 publications

(7 citation statements)

References 44 publications

(61 reference statements)

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“…Based on the calculated σ a (λ) and σ e (λ), it is valuable to compute the wavelength dependence of net gain as a function of population inversion for the upper laser level so as to acquire the gain property quantitatively. Assuming that Tm 3+ ions are either in the ground state ( 3 H 6 ) or in the upper laser level ( 3 F 4 ), the net gain coefficient, G ( λ ), can be expressed by the following equation 32 :…”

Section: Resultsmentioning

confidence: 99%

Highly Tm3+ doped germanate glass and its single mode fiber for 2.0 μm laser

Wen

Tang

Yang

et al. 2016

Sci Rep

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Highly Tm3+ doped optical fibers are urgently desirable for 2.0 μm compact single-frequency fiber laser and high-repetition-rate mode-locked fiber laser. Here, we systematically investigated the optical parameters, energy transfer processes and thermal properties of Tm3+ doped barium gallo-germanate (BGG) glasses. Highly Tm3+ doped BGG glass single mode (SM) fibers were fabricated by the rod-in-tube technique. The Tm3+ doping concentration reaches 7.6 × 1020 ions/cm3, being the reported highest level in Tm3+ doped BGG SM fibers. Using ultra short (1.6 cm) as-drawn highly Tm3+ doped BGG SM fiber, a single-frequency fiber laser at 1.95 μm has been demonstrated with a maximum output power of 35 mW when in-band pumped by a home-made 1568 nm fiber laser. Additionally, a multilongitudinal-mode fiber laser at 1.95 μm has also been achieved in a 10 cm long as-drawn active fiber, yielding a maximum laser output power of 165 mW and a slope efficiency of 17%. The results confirm that the as-drawn highly Tm3+ doped BGG SM fibers are promising in applications that require high gain and high power from a short piece of active optical fiber.

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Section: Resultsmentioning

confidence: 99%

Highly Tm3+ doped germanate glass and its single mode fiber for 2.0 μm laser

Wen

Tang

Yang

et al. 2016

Sci Rep

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“…Fluoride phosphate (FP) glasses have various speciality optical fibre applications including mid-IR lasers, 1 UV transmission 2,3 and radiation dosimetry. 4,5 Being closely related to other fluoride glasses, FP glasses share similarities relating to preform and fibre fabrication, such as the high scattering loss and fragility associated with surface defects.…”

Section: Introductionmentioning

confidence: 99%

Surface Analysis and Treatment of Extruded Fluoride Phosphate Glass Preforms for Optical Fiber Fabrication

et al. 2016

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The accepted version of an article is the version that incorporates all amendments made during the peer review process, but prior to the final published version (the Version of Record, which includes; copy and stylistic edits, online and print formatting, citation and other linking, deposit in abstracting and indexing services, and the addition of bibliographic and other material.Self-archiving of the accepted version is subject to an embargo period of 12-24 months. The embargo period is 12 months for scientific, technical, and medical (STM) journals and 24 months for social science and humanities (SSH) journals following publication of the final article.• the author's personal website • the author's company/institutional repository or archive • not for profit subject-based repositories such as PubMed Central Articles may be deposited into repositories on acceptance, but access to the article is subject to the embargo period.The version posted must include the following notice on the first page: "This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving."The version posted may not be updated or replaced with the final published version (the Version of Record). Authors may transmit, print and share copies of the accepted version with colleagues, provided that there is no systematic distribution, e.g. a posting on a listserve, network or automated delivery.There is no obligation upon authors to remove preprints posted to not for profit preprint servers prior to submission. May 2017Surface analysis and treatment of extruded fluoride phosphate glass preforms for optical fibre fabrication Abstract Fabrication of fluoride phosphate glass optical fibres using the extrusion method for preform fabrication has been studied using the commercial Schott N-FK51A glass. The extrusion step was found to create a surface layer of differing composition from the bulk glass material, leading to defects drawn down onto the optical fibre surface during fibre fabrication, resulting in high loss and fragile fibres. Similar phenomena have also been observed in other fluoride-based glasses. Removal of this surface layer from preforms prior to fibre drawing was shown to improve optical fibre loss from >5 dB/m to 0.5 -1.0 dB/m. The removal of this surface layer is therefore necessary to produce low-loss fluoride phosphate optical fibres.

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“…Table 2 shows a comparison with the J-O parameters for the Tm 3+ and Ho 3+ ions in various glass hosts. The trend of J-O intensity parameters for the Tm 3+ -doped TBZLN glass (Ω 2 >Ω 6 >Ω 4 ) is different compared with fluorophosphate, 16 tellurite, 17 germanate, 18 and BGN 19 glasses (Ω 2 >Ω 4 >Ω 6 ). On the other hand, the present Ho 3+ -doped TBZLN glasses as well as silicate, 20 tellurite (ZTHo), 21 BiGeZn, 22 ZnAli-BiB 23 glasses exhibit the parameters follow the trend as Ω 2 >Ω 4 >Ω 6 .…”

Section: Methodsmentioning

confidence: 89%

“…Ω 4 and Ω 6 indicate the rigidity of host glass. From Table 2, it is observed that for Tm 3+ ion-doped TBZLN glass, Ω 2 parameter (6.79910 À20 cm 2 ) is higher than other Tm 3+doped fluorophosphate, 16 tellurite, 17 germanate, 18 and BGN 19 glasses, indicative of strong covalency and asymmetry between Tm-O bond. In the case of Ho 3+ ions in Tm 3+ -/Ho 3+ -codoped TBZLN glass, Ω 2 parameter (3.14910 À20 cm 2 ) shows higher covalency and asymmetry between Ho-O bond when compared to Ho 3+ -doped zinctellurite 21 and BiGeZn 22 glasses but lower covalency and higher symmetry around the Ho 3+ ion compared with ZnAlBiB glass, 23 respectively.…”

Section: Methodsmentioning

confidence: 96%

Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

Seshadri

Anjos

Bell

et al. 2016

Int J of Appl Glass Sci

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Tm 3+ singly doped and Tm 3+ /Ho 3+ -codoped TeO 2 -Bi 2 O 3 -ZnO-Li 2 O-Nb 2 O 5 (TBZLN) tellurite glasses were successfully prepared by the melt-quenching technique. Emission characteristics and energy transfer mechanisms were studied upon 785 nm laser diode excitation. A significant enhancement of emission intensity at 1.81 lm with increasing concentration of Tm 3+ ions has been observed while increasing the emission intensity at 2.0 lm with increasing concentration of Ho 3+ has been observed up to the equal concentration of Tm 3+ (0.5 mol%) in TBZLN glasses. The stimulated emission cross section of Tm 3+ : 3 F 4 ? 3 H 6 (5.20 9 10 À21 cm 2 ) and Ho 3+ : 5 I 7 ? 5 I 8 (4.00 9 10 À21 cm 2 ) in 1.0 mol% Tm 3+ -doped and 0.5 mol % Tm 3+ /1.0 mol% Ho 3+ -codoped TBZLN glasses are higher compared to the reported and are found to be excellent candidates for solid-state lasers operating at~1.8 and 2.0 lm, respectively. The extension of NIR emission of Tm 3+ with Ho 3+ ions provides the possibility of using these materials for broadband NIR amplifiers.

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Mid-infrared emission properties and energy transfer evaluation in Tm3+ doped fluorophosphate glasses

Cited by 36 publications

References 44 publications

Highly Tm3+ doped germanate glass and its single mode fiber for 2.0 μm laser

Highly Tm3+ doped germanate glass and its single mode fiber for 2.0 μm laser

Surface Analysis and Treatment of Extruded Fluoride Phosphate Glass Preforms for Optical Fiber Fabrication

Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

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