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Updated: May 29, 2026

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Published on: July 12, 2017
Amplification and noise properties of an erbium-doped multicore fiber amplifier
K S Abedin1, T F Taunay, M Fishteyn
1OFS Laboratories, 19 Schoolhouse Road, Somerset, NJ 08873, USA. kabedin@ofsoptics.com
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.
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