Renk, Karl F. (2010) Role of excited-impurity quasiparticles for amplification of radiation in an erbium-doped glass fiber amplifier. APPLIED PHYSICS LETTERS, 96 (13): 131104. ISSN 0003-6951,
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In this paper, I will show that excited-impurity quasiparticles may play an essential role for the amplification of radiation in an erbium-doped glass fiber amplifier. A quasiparticle consists of an excited state of an erbium ion interacting with other erbium ions and with the thermal bath via phonon-assisted energy transfer processes. The quasiparticles populate energy levels of a quasiband. Fermi's statistics determines the average occupation numbers of the levels. The quasiparticle model leads to an analytical expression for the gain coefficient of an erbium-doped glass fiber amplifier, or generally, of a fiber amplifier or fiber laser.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MU-M; LEVEL; ERCL3; POWER; energy states; erbium; optical fibre amplifiers |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Aug 2020 12:17 |
| Last Modified: | 04 Aug 2020 12:17 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24959 |
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