Open AccessSquare nanosecond mode-locked Er-fiber laser synchronized to a picosecond Yb-fiber laser
Author(s) -
Yao Li,
Xiaokun Gu,
Ming Yan,
E Wu,
Heping Zeng
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.004526
Subject(s) - fiber laser , optics , materials science , nanosecond , picosecond , laser , mode locking , pulse duration , fiber , optoelectronics , physics , composite material
A mode-locked Er-doped fiber laser was triggered to synchronize with a separate ultrashort picosecond Yb-doped fiber laser by cross phase modulation. Square nanosecond pulses were generated in the long-cavity Er-fiber laser by the peak intensity clamp effect while the synchronization maintained. At the maximum pump power of 450 mW, a synchronous laser pulse duration of 5.5 ns has been achieved. This synchronous nanosecond and picosecond system has shown a large length mismatch tolerance of 2.6 mm and can work stably for days.