Chinese Optics Letters, 2019, 17 (4): 041403, Published Online: Apr. 3, 2019
Generation of few-cycle laser pulses by coherent synthesis based on a femtosecond Yb-doped fiber laser amplification system Download: 593次
140.3490 Lasers, distributed-feedback 060.2420 Fibers, polarization-maintaining 060.3735 Fiber Bragg gratings
Abstract
We demonstrate a coherent synthesis system based on femtosecond Yb-doped fiber laser technology. The output pulse of the amplification system is divided into two replicas and seeded into photonic crystal fibers of two parallel branches for nonlinear pulse compression. Because of the different nonlinear dynamics in the photonic crystal fibers, the compressed pulses show different spectra, which can be spliced to form a broad coherent spectrum. The integrated timing jitter between the pulses of two branches is less than one tenth of an optical cycle. By coherently synthesizing pulses from these two branches, 8 fs few-cycle pulses are produced.
Aichen Ge, Bowen Liu, Wei Chen, Haochen Tian, Youjian Song, Lu Chai, Minglie Hu. Generation of few-cycle laser pulses by coherent synthesis based on a femtosecond Yb-doped fiber laser amplification system[J]. Chinese Optics Letters, 2019, 17(4): 041403.