2026-10-12T11:32:36Z https://www.scidb.cn/oai

10.57760/sciencedb.03086 2022-11-24T17:06:07Z

2022-11-24 High Fidelity Picosecond Pulse Fiber Amplification With Inter-Stage Notch Filter doi:10.57760/sciencedb.03086 en We propose and demonstrate a high fidelity narrowband picosecond pulse two-stage fiber amplification scheme with inter-stage filtering technique using fiber Bragg grating. This technique can not only narrow the bandwidth of the pulses broadened by self phase modulation in the first-stage fiber amplifier, but also reshape the pulse temporal profile to near Gaussian shape,which reduces the spectral broadening slope of the pulses in the second-stage fiber amplifier and improves the narrowband fiber amplification ability. Using this technique, pulse energy of 10 nJ is achieved from a 0.2-nJ initial pulse by only using standard single mode fiber amplifiers while retaining 10 ps pulse width and 0.4 nm root mean square bandwidth. This technique may provide a simple and effective solution for high fidelity fiber amplification of low-energy ps seed pulse from fiber oscillators Pulse Fiber Amplification ; High Fidelity; Notch Filter Lu qiao Ma jingdong Duan dian Qinghe Mao PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1109/JLT.2020.3007069 Science Data Bank