Z. Sanjabi Eznaveh
University of Central Florida
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Publication
Featured researches published by Z. Sanjabi Eznaveh.
Optics Letters | 2016
G. Lopez-Galmiche; Z. Sanjabi Eznaveh; Mohammad Amin Eftekhar; J. E. Antonio Lopez; Logan G. Wright; Frank W. Wise; Demetrios N. Christodoulides; R. Amezcua Correa
We observe efficient supercontinuum generation that extends into the visible spectral range by pumping a low differential mode group delay graded index multimode fiber in the normal dispersion regime. For a 28.5 m long fiber, the generated spectrum spans more than two octaves, starting from below 450 nm and extending beyond 2400 nm. The main nonlinear mechanisms contributing to the visible spectrum generation are attributed to multipath four-wave mixing processes and periodic spatio-temporal breathing dynamics. Moreover, by exploiting the highly multimodal nature of this system, we demonstrate versatile generation of visible spectral peaks in shorter fiber spans by altering the launching conditions. A nonlinearly induced mode cleanup was also observed at the pump wavelength. Our results could pave the way for high brightness, high power, and compact, multi-octave continuum sources.
Optics Express | 2017
Z. Sanjabi Eznaveh; J. E. Antonio-Lopez; J. C. Alvarado Zacarias; Axel Schülzgen; Cm Chigo Okonkwo; R. Amezcua Correa
The emergence of space division multiplexing (SDM) for ultrahigh capacity networks has heralded pioneering Petabit-class optical transmission systems. In parallel to novel SDM fibers, a new class of components to enable scalable, low-loss schemes for unlocking fiber capacity is being developed. In this work, an all-fiber mode selective photonic lantern mode multiplexer designed for launching into few-mode multicore fibers is demonstrated. This device is capable of selectively exciting LP01, LP11a and LP11b modes in a seven-core configuration, resulting in 21 spatial channels, with less than 38 dB core-to-core crosstalk and insertion loss below 0.4 dB. The multicore photonic lantern multiplexer is scalable to larger number of cores and modes per core, and can be easily integrated with emerging ultra-high bandwidth few-mode multicore optical communication systems.
Optics Letters | 2016
G. Lopez-Galmiche; Z. Sanjabi Eznaveh; J. E. Antonio-Lopez; A. M. Velazquez Benitez; J. Rodriguez Asomoza; J. J. Sanchez Mondragon; Cédric Gonnet; Pierre Sillard; Guifang Li; Axel Schülzgen; Cm Chigo Okonkwo; R. Amezcua Correa
We demonstrate a few-mode erbium-doped fiber amplifier employing a mode-selective photonic lantern for controlling the modal content of the pump light. Amplification of six spatial modes in a 5 m long erbium-doped fiber to ∼6.2 dBm average power is obtained while maintaining high modal fidelity. Through mode-selective forward pumping of the two degenerate LP21 modes operating at 976 nm, differential modal gains of <1 dB between all modes and signal gains of ∼16 dB at 1550 nm are achieved. In addition, low differential modal gain for near-full C-band operation is demonstrated.
Advanced Photonics 2017 (IPR, NOMA, Sensors, Networks, SPPCom, PS) | 2017
J. E. Antonio-Lopez; Z. Sanjabi Eznaveh; Juan Carlos Alvarado-Zacarias; Roland Ryf; Nicolas K. Fontaine; Axel Schülzgen; R. Amezcua Correa
We report on the fabrication of multi-core multi-mode fibers tailored for optics communications applications. Examples of passive graded index fiber and active Er-doped multi-mode and multi-core fibers for ultra-high-density SDM will be discussed.
Proceedings of SPIE | 2016
G. Lopez-Galmiche; Z. Sanjabi Eznaveh; J. E. Antonio-Lopez; Amado M. Velázquez-Benítez; J. Rodriguez-Asomoza; L. A. Herrera-Piad; Jose J. Sanchez-Mondragon; C. Gonent; Pierre Sillard; Guifang Li; A. Schülzgen; Cm Chigo Okonkwo; R. Amezcua Correa
For the first time, we demonstrate the implementation of a core pumped few mode erbium amplifier utilizing a mode selective photonic lantern for spatial modal control of the pump light. This device is able to individually amplify the first six fiber modes with low differential modal gain. In addition, we obtained differential modal gain lower than 1 dB and signal gain of approximately 16.17 dB at λs = 1550 nm through forward pumping the LP21 modes at λp = 976 nm.
Optics Letters | 2017
Z. Sanjabi Eznaveh; Mohammad Amin Eftekhar; J. E. Antonio Lopez; Axel Schülzgen; Frank W. Wise; Demetrios N. Christodoulides; R. Amezcua Correa
Optics Letters | 2017
Z. Sanjabi Eznaveh; J. E. Antonio-Lopez; James Anderson; Axel Schülzgen; Rodrigo Amezcua-Correa
optical fiber communication conference | 2016
Z. Sanjabi Eznaveh; J. E. Antonio Lopez; G. Lopez Galmiche; J. Rodriguez Asomoza; D. Van Ras; Pierre Sillard; Axel Schülzgen; Cm Chigo Okonkwo; R. Amezcua Correa
photonics society summer topical meeting series | 2018
J. Enrique Antonio-Lopez; Z. Sanjabi Eznaveh; J. Carlos Alvarado-Zacarias; Pierre Sillard; A. Amezcua-Correa; Cédric Gonnet; Marianne Bigot-Astruc; Nicolas K. Fontaine; Roland Ryf; Haoshuo Chen; Axel Schülzgen; Rodrigo Amezcua-Correa
optical fiber communication conference | 2018
Z. Sanjabi Eznaveh; M. A. Eftekhar; J. E. Antonio Lopez; H. Lopez Aviles; Frank W. Wise; Demetrios N. Christodoulides; R. Amezcua Correa