270-km ultralong Raman fiber laser

270-km ultralong Raman fiber laser

We analyze the physical mechanisms limiting optical fiber resonator length and report on the longest ever laser cavity, reaching 270 km, which shows a clearly resolvable mode structure with a width of approximately 120 Hz and peak separation of approximately 380 Hz in the radio-frequency spectrum.

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Veröffentlicht in:Physical review letters 2009-09, Vol.103 (13), p.133901-133901, Article 133901
Hauptverfasser: Turitsyn, S K, Ania-Castañón, J D, Babin, S A, Karalekas, V, Harper, P, Churkin, D, Kablukov, S I, El-Taher, A E, Podivilov, E V, Mezentsev, V K
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Sprache:eng
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Zusammenfassung:We analyze the physical mechanisms limiting optical fiber resonator length and report on the longest ever laser cavity, reaching 270 km, which shows a clearly resolvable mode structure with a width of approximately 120 Hz and peak separation of approximately 380 Hz in the radio-frequency spectrum.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.103.133901