Structured blue emission in Bismuth doped fibers

A. Alessi; S. Girard; A. Morana; D. Di Francesca; H. El Hamzaoui; G. Bouwmans; M. Bouazaoui; A. Boukenter; Y. Ouerdane

doi:10.1016/j.optmat.2018.07.069

Structured blue emission in Bismuth doped fibers

A. Alessi
, S. Girard
, A. Morana
, D. Di Francesca
, H. El Hamzaoui
, G. Bouwmans
, M. Bouazaoui
, A. Boukenter
, Y. Ouerdane

Université Jean Monnet Saint-Étienne
IRCICA/CERLA

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

Abstract

We report an experimental investigation of the photoluminescence (PL) activities detected in as-drawn and γ-ray irradiated samples of a microstructured optical fiber elaborated with a silica-based core doped with Bismuth ions. The presence of several visible emission bands is revealed and characterized under 325 nm laser excitation. In both samples, four narrow emission bands are studied and analyzed. They are similarly bleached by a long UV laser exposure times. In addition, time-resolved luminescence data show that all these bands possess a similar lifetime of ∼4 μs Data analysis indicated that the energy levels scheme of the point defects responsible for these bands consists of: one above 5 eV, one at ∼3.6 eV, and at least one in the range 2.6–2.8 eV and of the ground one. As a consequence, even if the exact structural model cannot yet be fully identified, we suggest that the bands originate from color centers related to the Bismuth ions.

Original language	English
Pages (from-to)	663-667
Number of pages	5
Journal	Optical Materials
Volume	84
DOIs	https://doi.org/10.1016/j.optmat.2018.07.069
Publication status	Published - 1 Oct 2018
Externally published	Yes

Keywords

Bi-doped silica
Optical fiber
Photoluminescence
Radiation effects

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10.1016/j.optmat.2018.07.069

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@article{00f8046e068c47ee96dbd26ea1b539e5,

title = "Structured blue emission in Bismuth doped fibers",

abstract = "We report an experimental investigation of the photoluminescence (PL) activities detected in as-drawn and γ-ray irradiated samples of a microstructured optical fiber elaborated with a silica-based core doped with Bismuth ions. The presence of several visible emission bands is revealed and characterized under 325 nm laser excitation. In both samples, four narrow emission bands are studied and analyzed. They are similarly bleached by a long UV laser exposure times. In addition, time-resolved luminescence data show that all these bands possess a similar lifetime of ∼4 μs Data analysis indicated that the energy levels scheme of the point defects responsible for these bands consists of: one above 5 eV, one at ∼3.6 eV, and at least one in the range 2.6–2.8 eV and of the ground one. As a consequence, even if the exact structural model cannot yet be fully identified, we suggest that the bands originate from color centers related to the Bismuth ions.",

keywords = "Bi-doped silica, Optical fiber, Photoluminescence, Radiation effects",

author = "A. Alessi and S. Girard and A. Morana and \{Di Francesca\}, D. and \{El Hamzaoui\}, H. and G. Bouwmans and M. Bouazaoui and A. Boukenter and Y. Ouerdane",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.optmat.2018.07.069",

language = "English",

volume = "84",

pages = "663--667",

journal = "Optical Materials",

issn = "0925-3467",

}

TY - JOUR

T1 - Structured blue emission in Bismuth doped fibers

AU - Alessi, A.

AU - Girard, S.

AU - Morana, A.

AU - Di Francesca, D.

AU - El Hamzaoui, H.

AU - Bouwmans, G.

AU - Bouazaoui, M.

AU - Boukenter, A.

AU - Ouerdane, Y.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - We report an experimental investigation of the photoluminescence (PL) activities detected in as-drawn and γ-ray irradiated samples of a microstructured optical fiber elaborated with a silica-based core doped with Bismuth ions. The presence of several visible emission bands is revealed and characterized under 325 nm laser excitation. In both samples, four narrow emission bands are studied and analyzed. They are similarly bleached by a long UV laser exposure times. In addition, time-resolved luminescence data show that all these bands possess a similar lifetime of ∼4 μs Data analysis indicated that the energy levels scheme of the point defects responsible for these bands consists of: one above 5 eV, one at ∼3.6 eV, and at least one in the range 2.6–2.8 eV and of the ground one. As a consequence, even if the exact structural model cannot yet be fully identified, we suggest that the bands originate from color centers related to the Bismuth ions.

AB - We report an experimental investigation of the photoluminescence (PL) activities detected in as-drawn and γ-ray irradiated samples of a microstructured optical fiber elaborated with a silica-based core doped with Bismuth ions. The presence of several visible emission bands is revealed and characterized under 325 nm laser excitation. In both samples, four narrow emission bands are studied and analyzed. They are similarly bleached by a long UV laser exposure times. In addition, time-resolved luminescence data show that all these bands possess a similar lifetime of ∼4 μs Data analysis indicated that the energy levels scheme of the point defects responsible for these bands consists of: one above 5 eV, one at ∼3.6 eV, and at least one in the range 2.6–2.8 eV and of the ground one. As a consequence, even if the exact structural model cannot yet be fully identified, we suggest that the bands originate from color centers related to the Bismuth ions.

KW - Bi-doped silica

KW - Optical fiber

KW - Photoluminescence

KW - Radiation effects

U2 - 10.1016/j.optmat.2018.07.069

DO - 10.1016/j.optmat.2018.07.069

M3 - Article

AN - SCOPUS:85050894587

SN - 0925-3467

VL - 84

SP - 663

EP - 667

JO - Optical Materials

JF - Optical Materials

ER -

Structured blue emission in Bismuth doped fibers

Abstract

Keywords

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