Abstract

We explore parabolic pre-shaping as a means of generating and amplifying ultrashort pulses. We develop a theoretical framework for modeling the technique and use its conclusions to design a femtosecond fiber amplifier. Starting from 9 ps pulses, we obtain 4.3 μJ, nearly transform-limited pulses 275 fs in duration, simultaneously achieving over 40 dB gain and 33-fold compression. Finally, we show that this amplification scheme is limited by Raman scattering, and outline a method by which the pulse duration and energy may be further improved and tailored for a given application.

© 2017 Optical Society of America

172-fs, 27-µJ, Yb-doped all-fiber-integrated chirped pulse amplification system based on parabolic evolution by passive spectral amplitude shaping

Hong Chang, Zhaochen Cheng, Ruoyu Sun, Zhigang Peng, Miao Yu, Yu You, Min Wang, and Pu Wang
Opt. Express 27(23) 34103-34112 (2019)

Analytical model for synchronous Raman amplification of high-energy ultrashort pulses in optical fibers

Maxime Hardy, Michel Olivier, and Michel Piché
J. Opt. Soc. Am. B 32(8) 1593-1603 (2015)

Controlling the influence of SPM in fiber-based chirped-pulse amplification systems by using an actively shaped parabolic spectrum

Damian N. Schimpf, Jens Limpert, and Andreas Tünnermann
Opt. Express 15(25) 16945-16953 (2007)

Practical 24-fs, 1-μJ, 1-MHz Yb-fiber laser amplification system

Huanyu Song, Bowen Liu, Yang Li, Youjian Song, Hao He, Lu Chai, Minglie Hu, and Chingyue Wang
Opt. Express 25(7) 7559-7566 (2017)

Femtosecond laser pulse generation with self-similar amplification of picosecond laser pulses

Huanyu Song, Bowen Liu, Wei Chen, Yuan Li, Youjian Song, Sijia Wang, Lu Chai, Chingyue Wang, and Minglie Hu
Opt. Express 26(20) 26411-26421 (2018)