Cladding-pumped erbium-doped multicore fiber amplifier

Abedin, Kazi S.; Taunay, T. F.; Fishteyn, M.; DiGiovanni, D. J.; Supradeepa, V. R.; Fini, John M.; Yan, M. F.; Zhu, Bin; Monberg, Eric M.; DiMarcello, F.

doi:10.1364/oe.20.020191

Cited by 162 publications

(63 citation statements)

References 28 publications

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“…SDM amplifiers play an important role in long-haul SDM transmission systems [32], [51]- [54]. Figure 11 summarizes multi-core amplifiers where there are two different pumping schemes, namely, a core-pumping scheme and a cladding pumping scheme.…”

Section: Sdm Fiber and Sdm Amplifier Technologiesmentioning

confidence: 99%

R&D of 3M Technologies towards the Realization of Exabit/s Optical Communications

Morioka¹,

Awaji²,

Matsushima

et al. 2017

IEICE Trans. Commun.

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Section: Sdm Fiber and Sdm Amplifier Technologiesmentioning

confidence: 99%

R&D of 3M Technologies towards the Realization of Exabit/s Optical Communications

Morioka¹,

Awaji²,

Matsushima

et al. 2017

IEICE Trans. Commun.

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“…>10W) available from multimode pump diodes and a much lower cost compared with the single-mode pump diode in term of $/W [9]. The cladding pumping scheme had already been experimentally demonstrated as an efficient and practical way to provide pump sharing for multiple spatial channels in multi-core EDFAs [14,15], 6-spatial-mode EDFA [9] and few-mode multielement EDFAs [16]. The pump light can be side coupled into the double-clad active fiber using a tapered multimode pump fiber [15].…”

Section: Cladding Pumped Operationmentioning

confidence: 99%

Amplification of 12 OAM Modes in an air-core erbium doped fiber

Kang¹,

Gregg²,

Jung³

et al. 2015

Opt. Express

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Abstract:We theoretically propose an air-core erbium doped fiber amplifier capable of providing relatively uniform gain for 12 orbital angular momentum (OAM) modes (|L| = 5, 6 and 7, where |L| is the OAM mode order) over the C-band. Amplifier performance under core pumping conditions for a uniformly doped core for each of the supported pump modes (110 in total) was separately assessed. The differential modal gain (DMG) was found to vary significantly depending on the pump mode used, and the minimum DMG was found to be 0.25 dB at 1550 nm provided by the OAM (8,1) pump mode. A tailored confined doping profile can help to reduce the pump mode dependency for core pumped operation and help to increase the number of pump modes that can support a DMG below 1 dB. For the more practical case of cladding-pumped operation, where the pump mode dependency is almost removed, a DMG of 0.25 dB and a small signal gain of >20 dB can be achieved for the 12 OAM modes across the full Cband.

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“…Even if this is technically possible, multiplexing a number of single-mode pump diodes to generate sufficient pump power is an expensive way of pumping such an amplifier. Reduction in the cost per transmitted bit is essential for SDM to be seriously considered for commercial deployment and cladding-pumping using high-power multimode pump diodes (which has already been demonstrated for multi-core EDFAs [8]) provides a more practical and potentially much cheaper way in terms of $/W to generate and deliver the pump radiation. Figure 3a shows a schematic of a cladding pumped FM-EDFA [9].…”

Section: Few Mode Edfamentioning

confidence: 99%