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Strong broad C-band...
Strong broad C-band room-temperature photoluminescence in amorphous Er2O3 film
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- Grishin, Alexander M. (author)
- KTH,Materialfysik
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Vanin, E. V. (author)
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Tarasenko, O. V. (author)
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- Khartsev, Sergiy (author)
- KTH,Materialfysik, MF
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Johansson, P. (author)
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(creator_code:org_t)
- AIP Publishing, 2006
- 2006
- English.
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In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 89:2
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Photoluminescence with the bandwidth of 45 nm (1523-1568 nm at the level of 3 dB) was observed in amorphous Er2O3 films grown on quartz substrate by pulsed laser ablation of erbium oxide stoichiometric target. Optical transmission spectrum has been fitted to Swanepoel formula [J. Phys. E 16, 1214 (1983)] to determine dispersion of refractive index and to extract resonance absorption peaks at 980 and 1535 nm. The maximum gain coefficient as high as 800 dB/cm at 1535 nm was estimated using McCumber theory and experimental spectrum of the resonance absorption. For 5 mm long waveguide amplifier with erbium doping confinement factor of 0.1, the theory predicts the spectral gain of 18 dB with 1.2 dB peak-to-peak flatness in the bandwidth of 31 nm (1532-1563 nm) when 73% of Er3+ ions are excited from the ground state to the I-4(3/2) laser level. Strong broadband photoluminescence at room temperature and inherently flat spectral gain promise Er2O3 films for ultrashort high-gain optical waveguide amplifiers and integrated light circuits.
Keyword
- laser-ablation
- silicon
- si
- luminescence
- excitation
- gain
Publication and Content Type
- ref (subject category)
- art (subject category)
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