270-km ultralong Raman fiber laser.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Physical review letters
دوره 103 13 شماره
صفحات -
تاریخ انتشار 2009