Results 101 to 110 of about 660 (137)
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Modal Gain Equalization of Few-mode Erbium-doped Fiber Amplifiers Enabled by Mirrored Mode Exchanges
Optical Fiber Communication Conference (OFC) 2023, 2023We propose a six-mode erbium-doped fiber amplifier with significantly reduced differential modal gain (DMG) by mirrored exchanging of the spatial modes for the first time. A DMG of <1.8 dB across the whole C-band is experimentally achieved.
Tao Xu +10 more
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Strongly Coupled Few-mode Erbium-doped Fiber Amplifiers with Ultralow Differential Modal Gain
Optical Fiber Communication Conference (OFC) 2020, 2020We propose new few-mode EDFAs based on strong mode coupling, which can be realized by distributed long-period gratings. As a result, an ultralow differential modal gain of 0.5 dB can be achieved with layered doping.
Yaping Liu +4 more
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Gain Characteristics of Few-mode Erbium-doped Fiber Amplifiers Pumped with Complex Mode Field
Asia Communications and Photonics Conference 2021, 2021We present a theoretical model of few-mode erbium-doped fiber amplifiers with complex mode fields and show that a tunable differential mode gain (DMG) can be realized by changing the components of LP11 e,x and LP11 o,y .
Xinrui Jiang, Baojian Wu
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Few-mode Erbium Doped Fiber Amplifiers
2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching, 2013We review recent work on fiber amplifiers for optical communication systems relying on mode-division multiplexing. This work includes results from a record 6-mode few-mode erbium doped amplifier demonstration.
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Applied Optics, 2023
In mode-division multiplexing (MDM) optical transmission systems and MDM networks, the gain must be kept nearly constant even when the input signal power of the few-mode (FM), erbium-doped fiber amplifier (EDFA) changes. This paper investigates controllability of the gain in a 4-LP mode EDFA, whose EDF has signal modes of LP01, LP11, LP21, and LP02 or ...
Hirotaka Ono, Makoto Yamada
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In mode-division multiplexing (MDM) optical transmission systems and MDM networks, the gain must be kept nearly constant even when the input signal power of the few-mode (FM), erbium-doped fiber amplifier (EDFA) changes. This paper investigates controllability of the gain in a 4-LP mode EDFA, whose EDF has signal modes of LP01, LP11, LP21, and LP02 or ...
Hirotaka Ono, Makoto Yamada
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Latest results and future perspectives on Few-Mode Erbium Doped Fiber Amplifiers
Optical Fiber Technology, 2017Abstract Space division multiplexing has generated a lot of interest during the last five years and motivated intensive work on multicore and few-mode fibers. Whereas some concepts like multimode waveguides and mode coupling have been re-visited for mode-division multiplexing, some new problems have been addressed, as is the case for multimode ...
Trinel, Jean-Baptiste +4 more
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Journal of Computational Electronics, 2021
This paper describes the system performance of mode division multiplexing applications. The mode of amplification involved a ring profile-based multi-mode erbium-doped fiber amplifier with minimum support of 10 vortex spatial modes. The vortex modes are configured and generated by the vortex lens whose input is excited by a spatial laser source.
D. Vigneswaran +3 more
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This paper describes the system performance of mode division multiplexing applications. The mode of amplification involved a ring profile-based multi-mode erbium-doped fiber amplifier with minimum support of 10 vortex spatial modes. The vortex modes are configured and generated by the vortex lens whose input is excited by a spatial laser source.
D. Vigneswaran +3 more
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All-fiber few-mode erbium-doped fiber amplifier supporting six spatial modes
Chinese Optics Letters, 2019Using the few-mode erbium-doped fiber (FM-EDF) with a simple two-layer erbium-doped structure, we demonstrate an all-fiber FM-EDF amplifier. The gain equalization among the six spatial modes supported by the FM-EDF is achieved when only the pump in the fundamental mode (LP01) is applied.
Zhenzhen Zhang +5 more
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Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013
We measure the modal gain and noise figure characteristics of a ring-doped few-mode erbium-doped fiber amplifier. We obtained 1 dB higher gain in LP11 than LP01 at an average of 12.5 dB per mode.
Ezra Ip +7 more
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We measure the modal gain and noise figure characteristics of a ring-doped few-mode erbium-doped fiber amplifier. We obtained 1 dB higher gain in LP11 than LP01 at an average of 12.5 dB per mode.
Ezra Ip +7 more
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Optical Fiber Communication Conference, 2015
We analyze the impact of beating effects between signal modes experimentally by comparing gain values for modulated and CW signals. We measure noticeable differences because of mode beating and mode dependent EDFA saturation.
Simon Akhtari +3 more
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We analyze the impact of beating effects between signal modes experimentally by comparing gain values for modulated and CW signals. We measure noticeable differences because of mode beating and mode dependent EDFA saturation.
Simon Akhtari +3 more
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