Optimization of erbium-doped actively Q-switched fiber laser implemented in symmetric configuration


We report the results of an experimental study aimed at improving the performance of actively Q-switched fiber lasers. Unlike generic design schemes employing photonic crystal fibers, largemodal diameter fibers or double-clad fibers, we demonstrate a high-power, actively Q-switched laser based on standard com- munication erbium doped fibers with peak irradiance beyond the state-of-the-art at 3.1 GW/cm2 . The laser had 2.2 kW peak power, 15.5 ns pulse duration and 36.8 µJ pulse energy. We have also investigated the dynamics of pulse generation and have success- fully suppressed pulse instabilities caused by backscattered laser emission reaching the pump laser diodes.

Publication DOI: https://doi.org/10.1109/JSTQE.2014.2301015
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
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Uncontrolled Keywords: active Q-switching,erbium-doped fiber laser,fiber lasers,giant pulse,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics
Publication ISSN: 1077-260X
Last Modified: 07 Jun 2024 07:11
Date Deposited: 01 Sep 2014 13:50
Full Text Link: http://ieeexplo ... rnumber=6714372
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2014-09
Published Online Date: 2014-01-16
Authors: Kolpakov, Stanislav A. (ORCID Profile 0000-0001-6947-8289)
Sergeyev, Sergey (ORCID Profile 0000-0002-1515-5019)
Mou, Chengbo (ORCID Profile 0000-0001-6107-3439)
Gordon, Neil T. (ORCID Profile 0000-0002-1474-9739)
Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)



Version: Accepted Version

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