Abstract
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 ~120??Hz and peak separation of ~380Hz in the radio-frequency spectrum.
Original language | English |
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Article number | 133901 |
Pages (from-to) | 133901 |
Number of pages | 1 |
Journal | Physical Review Letters |
Volume | 103 |
Issue number | 13 |
DOIs | |
Publication status | Published - 21 Sept 2009 |
Bibliographical note
© 2009 The American Physical SocietyKeywords
- photonics
- ultralong raman fibre laser
- optical fibres