Optical Orbital Angular Momentum Amplifier Based on an Air-Hole Erbium-Doped Fiber

We present for the first time broadband operation of an optical orbital angular momentum (OAM) erbium-doped fiber amplifier for lower order OAM modes based on an air-hole erbium-doped fiber designed and fabricated to provide significant mode splitting between the OAM |l| = 1 modes and the adjacent v...

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Veröffentlicht in:	Journal of lightwave technology 2017-02, Vol.35 (3), p.430-436
Hauptverfasser:	Yongmin Jung, Qiongyue Kang, Sidharthan, Raghuraman, Ho, Daryl, Seongwoo Yoo, Gregg, Patrick, Ramachandran, Siddharth, Alam, Shaif-Ul, Richardson, David J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Erbium Fiber devices and optical amplifiers Indexes Optical amplifiers Optical fiber amplifiers Optical fiber communication Optical fiber devices optical vortices Refractive index space-division multiplexing
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Beschreibung
Zusammenfassung:	We present for the first time broadband operation of an optical orbital angular momentum (OAM) erbium-doped fiber amplifier for lower order OAM modes based on an air-hole erbium-doped fiber designed and fabricated to provide significant mode splitting between the OAM \|l\| = 1 modes and the adjacent vector modes. Up to 15.7 dB gain is obtained using a cladding pumped amplifier configuration for OAM modes with topological charge \|l\| = 1 in the operational wavelength range 1545-1600 nm.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2017.2651145