| Autor: |
Bufetov IA; Fiber Optics Research Center, Russian Academy of Sciences, 38 Vavilov Street, 119333 Moscow, Russia. iabuf@fo.gpi.ru, Melkumov MA, Firstov SV, Shubin AV, Semenov SL, Vel'miskin VV, Levchenko AE, Firstova EG, Dianov EM |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2011 Jan 15; Vol. 36 (2), pp. 166-8. |
| DOI: |
10.1364/OL.36.000166 |
| Abstrakt: |
Luminescence emission and excitation spectra of bismuth-doped silica optical fibers free of other dopants have been obtained to construct an emission-excitation map in a wide wavelength range of 400-1600 nm. The main low-lying energy levels of the bismuth active centers in such fibers have been determined. For the first time (to our knowledge), optical gain and lasing have been obtained in such fibers. A gain of 8 dB has been achieved with a pump power of 340 mW, and a cw fiber laser emitting at 1460 nm with an output power of 40 mW and an efficiency of ≈3% has been created. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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