Few-Mode Erbium-Doped Fiber Amplifier With Photonic Lantern For Pump Spatial Mode Control

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 ∼6.2 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 <1 dB between all modes and signal gains of ∼16 dB at 1550 nm are achieved. In addition, low differential modal gain for near-full C-band operation is demonstrated.

Publication Date

6-1-2016

Publication Title

Optics Letters

Volume

41

Issue

11

Number of Pages

2588-2591

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.41.002588

Socpus ID

84975092122 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84975092122

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