Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 44 checked references that resolve
resolves10.1364/OL.29.001998Bismuth- and aluminum-codoped germanium oxide glasses for super-broadband optical amplification
resolves10.1364/OL.30.002433Superbroadband 1310 nm emission from bismuth and tantalum codoped germanium oxide glasses
resolves10.1364/OPEX.13.006892Broadband infrared luminescence from Li2O-Al2O3-ZnO-SiO2 glasses doped with Bi2O3
resolves10.1364/OE.19.019551Combined excitation-emission spectroscopy of bismuth active centers in optical fibers
resolves10.1088/1054-660X/23/10/105812Broadband photoluminescence of Bi<sub>2</sub>O<sub>3</sub>–GeO<sub>2</sub>binary systems: glass, glass-ceramics and crystals
resolves10.1364/OE.16.021032Bismuth doped fiber laser and study of unsaturable loss and pump induced absorption in laser performance
resolves10.1364/OE.15.005473Narrow-line, 1178nm CW bismuth-doped fiber laser with 6.4W output for direct frequency doubling
resolves10.1117/12.840666Efficient bi-doped fiber lasers and amplifiers for the spectral region 1300-1500 nm
resolves10.1364/OL.36.002408Laser diode pumped bismuth-doped optical fiber amplifier for 1430 nm band
resolves10.1364/OL.39.006927Bismuth-doped optical fibers and fiber lasers for a spectral region of 1600–1800 nm
resolves10.1039/jm9940401349Materials chemistry communications. Red bismuth emission in alkaline-earth-metal sulfates
resolves10.1364/OL.33.002131Spectroscopic study of optical centers formed in Bi-, Pb-, Sb-, Sn-, Te-, and In-doped germanate glasses
resolves10.1016/j.ssc.2006.07.023Effect of various alkaline-earth metal oxides on the broadband infrared luminescence from bismuth-doped silicate glasses
resolves10.1103/PhysRevB.27.5332Optical properties of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Tl</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>(1) center in KCl
resolves10.1007/s00340-009-3689-3Factors affecting the formation of near infrared-emitting optical centers in Bi-doped glasses
resolves10.1364/OME.3.001059The origin of near-IR luminescence in bismuth-doped silica and germania glasses free of other dopants: First-principle study
resolves10.1364/OME.5.000163Origin of near-IR luminescence in Bi_2O_3–GeO_2 and Bi_2O_3–SiO_2 glasses: first-principle study
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