材料科学
光纤激光器
光学
纤维
色散位移光纤
光纤
光纤布拉格光栅
超短脉冲
光子晶体光纤
保偏光纤
单模光纤
光电子学
色散(光学)
双包层光纤
零色散波长
激光器
石英纤维
铥
渐变折射率纤维
多模光纤
波长
模式锁定
塑料光纤
光纤传感器
兴奋剂
物理
复合材料
作者
Shaoxiang Chen,Yuhao Chen,Kun Liu,Raghuraman Sidharthan,Huizi Li,Chang Chen,Qi Jie Wang,Dingyuan Tang,Seongwoo Yoo
出处
期刊:Optics Express
[The Optical Society]
日期:2020-05-27
卷期号:28 (12): 17570-17570
被引量:21
摘要
We report an all-fiber high pulse energy ultrafast laser and amplifier operating at the short wavelength side of the thulium (Tm) emission band. An in-house W-type normal dispersion Tm-doped fiber (NDTDF) exhibits a bending-induced distributed short-pass filtering effect that efficiently suppresses the otherwise dominant long wavelength emission. By changing the bending diameter of the fiber, we demonstrated a tunable mode-locked Tm-doped fiber laser with a very wide tunable range of 152 nm spanning from 1740 nm to 1892 nm. Pulses at a central wavelength of 1755 nm were able to be amplified in an all-fiber configuration using the W-type NDTDF, without the use of any artificial short-pass filter or pulse stretcher. The all-fiber amplifier delivers 2.76 ps pulses with an energy of ∼32.7 nJ without pulse break-up, due to the normal dispersion nature of the gain fiber, which marks so far, the highest energy amongst fiber lasers in the 1700 nm-1800 nm region.
科研通智能强力驱动
Strongly Powered by AbleSci AI