PICOSECOND MODE-LOCKED TM-DOPED FIBRE LASER AND AMPLIFIER SYSTEM PROVIDING OVER 20 W OF AVERAGE OUTPUT POWER AT 1994 NM

被引：3
|
作者：
Grzes, Pawel [1 ]
Michalska, Maria [1 ]
Swiderski, Jacek [1 ]
机构：
[1] Mil Univ Technol, Inst Optoelect, Urbanowicza 2, PL-00908 Warsaw, Poland
来源：
METROLOGY AND MEASUREMENT SYSTEMS | 2018年 / 25卷 / 04期
关键词：
pulsed fibre lasers and amplifiers; mid-infrared; mode-locked lasers; thulium-doped fibres; SUPERCONTINUUM GENERATION; THULIUM; PULSE;
D O I：
10.24425/mms.2018.124879
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A mode-locked Tm3+-doped fibre laser and amplifier operating at a central wavelength of 1994.3 nm is demonstrated. A thulium oscillator is passively mode-locked by a semiconductor saturable absorber mirror to generate an average power of 17 mW at a fundamental repetition rate of 81 MHz in a short linear cavity. This 2-mu m laser train is amplified to an average power to 20.26 W by two double-clad thulium-doped all-fibre amplifiers. The pulse energy, duration and peak power is 250 nJ, 23 ps and 9.57 kW. respectively. This represents one of the highest values of average power at similar to 2-mu m-wavelength for picosecond thulium-doped fibre lasers and amplifiers. The performance of the laser system is described in details.
引用
收藏
页码：649 / 658
页数：10
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