Abstract

A multicore erbium-doped fiber (MC-EDF) amplifier for simultaneous amplification in the 7-cores has been developed, and the gain and noise properties of individual cores have been studied. The pump and signal radiation were coupled to individual cores of MC-EDF using two tapered fiber bundled (TFB) couplers with low insertion loss. For a pump power of 146 mW, the average gain achieved in the MC-EDF fiber was 30 dB, and noise figure was less than 4 dB. The net useful gain from the multicore-amplifier, after taking into consideration of all the passive losses, was about 23-27 dB. Pump induced ASE noise transfer between the neighboring channel was negligible.

© 2011 OSA

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References

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  1. A. Sano, H. Masuda, T. Kobayashi, M. Fujiwara, K. Horikoshi, E. Yoshida, Y. Miyamoto, M. Matsui, M. Mizoguchi, H. Yamazaki, Y. Sakamaki, and H. Ishii, “69.1-Tb/s (432 x 171-Gb/s) C- and extended L-band transmission over 240 km using PDM-16-QAM modulation and digital coherent detection,” OFC/NFOEC 2010, post-deadline paper PDPB7.
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2011 (1)

2010 (1)

Al Amin, A.

Chen, X.

Dimarcello, F. V.

Fini, J. M.

Fishteyn, M.

Li, A.

Monberg, E. M.

Shieh, W.

Taunay, T. F.

Yan, M. F.

Zhu, B.

Opt. Express (2)

Other (12)

B. Zhu, T.F. Taunay, M. Fishteyn, X. Liu, S. Chandrasekhar, M. F. Yan, J. M. Fini, E.M. Monberg, F.V. Dimarcello, K. Abedin, P.W. Wisk, D.W. Peckham, and P. Dziedzic, “Space-, Wavelength-, Polarization-Division Multiplexed Transmission of 56-Tb/s over a 76.8-km Seven-Core Fiber,” in OFC/NFOEC 2011, OSA Technical Digest, post-deadline paper PDPB7.

J. Sakaguchi, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, T. Hayashi, T. Taru, T. Kobayashi, and M. Watanabe, “109-Tb/s (7X97X172-Gbs SDMWDMPDM) QPSK transmission through 16.8-km homogenous multi-core fiber,” in OFC/NFOEC 2011, OSA Technical Digest, post-deadline paper PDPB6.

D. Derickson, Fiber Optic Test and Measurement (Prentice Hall PTR, Upper Saddle River, New Jersey).

R. Ryf, S. Randel, A.H. Gnauch, C. Bolle, R.-J. Essiambre, P. J. Wintzer, D.W. Peckham, A. McCurdy, and R. Lingle, Jr., “Space-division multiplexing over 10km of three-mode fiber using coherent 6x 6 MIMO processing,” in OFC/NFOEC 2011, OSA Technical Digest, post-deadline paper PDPB10.

M. Salsi, C. Koebele, D.Sperti, P.Tran, P. Brindel, H. Mardoyan, S.Bigo, A. Boutin, F. Verluise, P. Sillard, M. Astruc, L. Provost, F. Cerou, and G.Charlet, “Transmission at 2x100Gb/s, over Two Modes of 40km-long Prototype Few-Mode Fiber, using LCOS-based Mode Multiplexer and Demultiplexer,” OSA Technical Digest, post-deadline paper PDPB9.

K. Imamura, K. Mukasa, and T. Yagi, “Investigation on multi-core fibers with large Aeff and low micro bending loss,” OFC 2010 paper OWK6.

K. Takenaga, S. Tanigawa, N. Guan, S. Matsuo, K. Saitoh, and M. Koshiba, “Reduction of crosstalk by quasi-homogeneous solid multi-core Fiber,” in OFC2010, paper OWK7.

J. Fini, T. F. Taunay, B. Zhu, and M. Yan, “Low cross-talk design of multicore fibers,” in CLEO2010, OSA Technical Digest, paper CTuAA3.

A. Sano, H. Masuda, T. Kobayashi, M. Fujiwara, K. Horikoshi, E. Yoshida, Y. Miyamoto, M. Matsui, M. Mizoguchi, H. Yamazaki, Y. Sakamaki, and H. Ishii, “69.1-Tb/s (432 x 171-Gb/s) C- and extended L-band transmission over 240 km using PDM-16-QAM modulation and digital coherent detection,” OFC/NFOEC 2010, post-deadline paper PDPB7.

T. Morioka, “New generation optical infrastructure technologies: “EXAT initiative” towards 2020 and beyond,” OECC2009, paper FT4.

A. R. Chraplyvy, “The coming capacity crunch,” ECOC plenary talk, 2009.

S. Inao, T. Sato, S. Sentsui, T. Kuroha, and Y. Nishimura, “Multicore optical fiber,” in Optical Fiber Communication, 1979 OSA Technical Digest Series (Optical Society of America, 1979), paper WB1.

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Figures (8)

Fig. 1
Fig. 1

Microscopic image of the cross section of a MC-EDF.

Fig. 2
Fig. 2

Experimental setup.

Fig. 3
Fig. 3

Loss between the various cores at the input and output of the TFB-MCEDF-TFB module. #0: Central core, #1 - #6: outer corresponding cores.

Fig. 4
Fig. 4

Gross gain G P Q and NF measured for different cores of the EDMCF.

Fig. 5
Fig. 5

Gross gain GPQ and net gain GAD measured in different cores of the multicore EDF.

Fig. 6
Fig. 6

Gross gain GPQ and NF plotted as a function of output power for an outer core (#1).

Fig. 7
Fig. 7

Optical spectra measured at the output of outer core (#1) of the amplifier. Signal is launched into core #1 and pump is launched into core #0 or #1.

Fig. 8
Fig. 8

Output power measured at the various output cores while the signal and pump were launched at input cores #0-#6. Signal is amplified in the cores between an input and corresponding output core number, while for cross-cores signal suffer attenuation (Gain<0).

Equations (3)

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G P Q = P Q / P P
G A D = P D / P A
N F ( d B ) = 10. log ( P ( A S E ) Q h ν B o G P Q + 1 G P Q P ( S S E ) P h ν B o )

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