Delay-induced instability in phase-locked dual-polarization distributed-feedback fiber lasers - Archive ouverte HAL
Journal Articles Physical Review A Year : 2020

Delay-induced instability in phase-locked dual-polarization distributed-feedback fiber lasers

Abstract

We study experimentally and theoretically a dual-polarization fiber laser submitted to time-delayed frequency-shifted optical feedback. In addition to the usual frequency-locking regime that is expected when the frequency shift is close to the polarization beat frequency, we observe at high pumping rates a dynamical pulsing regime inside the locking range. This regime is experimentally evidenced in a full-fibered experiment based on an erbium-doped distributed-feedback fiber laser in which polarization beat frequency is about 1 GHz. A rate-equation model including the frequency-shifted feedback term reproduces well the experimental bifurcation maps, provided that both the time delay and a phase-amplitude coupling parameter (α factor) are taken into account. The impact on microwave-photonics applications is discussed.
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Dates and versions

hal-02565340 , version 1 (06-05-2020)

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Marie Guionie, Marco Romanelli, Aurélien Thorette, Anthony Carré, Emmanuel Pinsard, et al.. Delay-induced instability in phase-locked dual-polarization distributed-feedback fiber lasers. Physical Review A, 2020, 101 (4), pp.043843. ⟨10.1103/PhysRevA.101.043843⟩. ⟨hal-02565340⟩
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