Temporal characterization of a multi-wavelength Brillouin-erbium fiber laser

This paper provides the first detailed temporal characterization of a multi-wavelength-Brillouin-erbium fiber laser (MWBEFL) by measuring the optical intensity of the individual frequency channels with high temporal resolution. It is found that the power in each channel is highly unstable due to the...

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Bibliographic Details
Published in:New journal of physics 2016-05, Vol.18 (5), p.55003
Main Authors: Iezzi, Victor Lambin, Büttner, Thomas F S, Tehranchi, Amirhossein, Loranger, Sébastien, Kabakova, Irina V, Eggleton, Benjamin J, Kashyap, Raman
Format: Article
Language:English
Subjects:
Acoustic waves
Brillouin eribum laser
Brillouin scattering
Computer simulation
Dynamic stability
Erbium
fiber laser
Fiber lasers
multi-wavelength laser
Physics
Temporal resolution
Time measurement
Wave equations
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Summary:This paper provides the first detailed temporal characterization of a multi-wavelength-Brillouin-erbium fiber laser (MWBEFL) by measuring the optical intensity of the individual frequency channels with high temporal resolution. It is found that the power in each channel is highly unstable due to the excitation of several cavity modes for typical conditions of operation. Also provided is the real-time measurements of the MWBEFL output power for two configurations that were previously reported to emit phase-locked picosecond pulse trains, concluded from their autocorrelation measurements. Real-time measurements reveal a high degree of instability without the formation of a stable pulse train. Finally, we model the MWBEFL using coupled wave equations describing the evolution of the Brillouin pump, Stokes and acoustic waves in the presence of stimulated Brillouin scattering, and the optical Kerr effect. A good qualitative consistency between the simulation and experimental results is evident, in which the interference signal at the output shows strong instability as well as the chaotic behavior due to the dynamics of participating pump and Stokes waves.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/18/5/055003