Optimization for the fiber laser source through its temporal and spectral characteristics

Wei Liu; Pengfei Ma; Pu Zhou; Zongfu Jiang

doi:10.1117/12.2277694

5 October 2017 Optimization for the fiber laser source through its temporal and spectral characteristics

Wei Liu, Pengfei Ma, Pu Zhou, Zongfu Jiang

Proceedings Volume 10436, High-Power Lasers: Technology and Systems, Platforms, and Effects; 104360O (2017) https://doi.org/10.1117/12.2277694
Event: SPIE Security + Defence, 2017, Warsaw, Poland

Abstract

In this work, the spectral broadening and the stimulated Raman scattering (SRS) properties of fiber oscillators with different temporal and spectral characteristics were analyzed theoretically. We propose a spectral model for the amplification process in fiber amplifiers and a qualitative model for fiber oscillators through the superposition of multi-longitudinal modes. It is revealed that there are there are clearly linear and nonlinear broadening regions along with the power scaling in the MOPA structure, while the growth rate and the SRS threshold are all closely related to the temporal and spectral characteristics of the fiber oscillator. The preliminary analysis of the simulation results shows that both the noise floor and the temporal fluctuations in fiber oscillators will significantly impact the SRS threshold of the MOPA structure, while only the temporal fluctuations in fiber oscillators would impact the spectral broadening properties. The developed model represents a powerful tool for the optimization of a fiber oscillator through its structural parameters.

Citation Download Citation

Wei Liu, Pengfei Ma, Pu Zhou, and Zongfu Jiang "Optimization for the fiber laser source through its temporal and spectral characteristics", Proc. SPIE 10436, High-Power Lasers: Technology and Systems, Platforms, and Effects, 104360O (5 October 2017); https://doi.org/10.1117/12.2277694

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KEYWORDS

Oscillators

Structured optical fibers

Fiber characterization

Fiber lasers

Active optics

Fiber optics

High power fiber amplifiers

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