Lasers, Fiber Optics, and Communications

Polarization properties of vector solitons generated by modulation instability in a fiber with circular birefringence

[+] Author Affiliations
Ariel Flores-Rosas, Roberto Arceo, Orlando Díaz-Hernández, Victor I. Ruiz-Pérez, Gerardo J. Escalera-Santos

Universidad Autónoma de Chiapas, Facultad de Ciencias en Física y Matemáticas, Rancho San Francisco, Ciudad Universitaria, Terán, Tuxtla Gutiérrez, Chiapas, México

Evgeny A. Kuzin

Instituto Nacional de Astrofísica, Óptica y Electrónica, Optics Department, Puebla, Pue., México

Opt. Eng. 56(3), 036115 (Mar 25, 2017). doi:10.1117/1.OE.56.3.036115
History: Received October 25, 2016; Accepted February 13, 2017
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Abstract.  We analyzed the two coupled propagation equations in a circularly birefringent fiber. We found that the difference between perpendicular and parallel Raman gain results in energy transform from a slow to fast circularly polarized component. We have shown this effect analytically and by a numerical simulation. We analyzed and measured the polarization of solitons generated by modulation instability and we found that polarization ellipticity of solitons is distributed randomly; however, the ellipticity of polarization is close to the polarization of the input pulse and always is shifted toward the circular polarization. Therefore, if a circularly polarized pulse is launched at the fiber input then the produced solitons are also circularly polarized. In the experiment, we used SMF-28 twisted fiber by 6  turns/m; the fiber twist mitigated the random linear birefringence, and the fiber was pumped by 1-ns pulse. We have found that circular polarization of the pump pulse in the twisted fiber produces circularly polarized solitons with a high grade of polarization while in the fiber without twist the soliton polarization was random.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Ariel Flores-Rosas ; Evgeny A. Kuzin ; Roberto Arceo ; Orlando Díaz-Hernández ; Victor I. Ruiz-Pérez, et al.
"Polarization properties of vector solitons generated by modulation instability in a fiber with circular birefringence", Opt. Eng. 56(3), 036115 (Mar 25, 2017). ; http://dx.doi.org/10.1117/1.OE.56.3.036115


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