Ultrafast thulium-doped fiber-oscillator with pulse energy of 4.3 nJ

被引:92
|
作者
Engelbrecht, Martin [1 ]
Haxsen, Frithjof [1 ]
Ruehl, Axel [1 ]
Wandt, Dieter [1 ]
Kracht, Dietmar [1 ]
机构
[1] Laser Zentrum Hannover eV, D-30419 Hannover, Germany
关键词
D O I
10.1364/OL.33.000690
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A femtosecond fiber laser based on thulium-doped double-clad silica fiber with an internal dispersion compensation is presented that generates pulses at a center wavelength of 1976 nm with an energy of 4.3 nJ and a duration of 1.2 ps. The dechirped pulse duration is 294 fs. The pulse energy is more than 2 orders of magnitude above the pulse energy demonstrated previously. Mode locking is achieved using additive pulse mode locking, and dispersion compensation is facilitated by a grating stretcher arrangement. (C) 2008 Optical Society of America.
引用
收藏
页码:690 / 692
页数:3
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