Abstract
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 x223C;6.2x2009;x2009;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 lt;1x2009;x2009;dB between all modes and signal gains of x223C;16x2009;x2009;dB at 1550 nm are achieved. In addition, low differential modal gain for near-full C-band operation is demonstrated.
Original language | English |
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Pages (from-to) | 2588-2591 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 41 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2016 |
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High Capacity Optical Transmission Lab
Chigo Okonkwo (Manager), Sjoerd van der Heide (Operator), Menno van den Hout (Operator), Sebastiaan Goossens (Operator), John J.A. van Weerdenburg (Operator), Vincent van Vliet (Operator), Tom Bradley (Manager), Aaron Albores-Mejia (Manager), Denis Fatkhiev (Operator), Maria Freire Hermelo (Operator), Kadir Gümüş (Operator) & Besma Kalla (Operator)
Electrical EngineeringFacility/equipment: Research lab