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Graded-Index Ytterbium-Doped Optical Fiber Fabricated through Vapor Phase Chelate Delivery Technique

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Graded-Index Ytterbium-Doped Optical Fiber Fabricated through Vapor Phase Chelate Delivery Technique
 
Creator Choudhury, Nilotpal
Shekhar, Nishant Kumar
Dhar, Anirban
Sen, Ranjan
 
Subject Processing Science
 
Description Herein, the fabrication of ytterbium-doped graded refractive-index few-mode fiber (GRIN-FMF) is described for the first time following a vapor phase chelate delivery technique. Investigation is carried out to find out the best possible approach to fabricate the preform. The optimization of the process steps along with composition and associated process parameters leads to a parabolic refractive-index profile with a profile parameter of 2 in the developed fiber. A large core of 30 mu m diameter and a low numerical aperture (NA) of 0.08 with graded distribution of dopant ions is achieved with a good repeatability. Amplification gain of more than 20 dB with good beam quality for pulses with kW peak power without any distortion in temporal, spectral, and spatial profile proves the potential of the fiber for many promising applications.
 
Publisher Wiley
 
Date 2019-10
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/4760/1/anirban.pdf
Choudhury, Nilotpal and Shekhar, Nishant Kumar and Dhar, Anirban and Sen, Ranjan (2019) Graded-Index Ytterbium-Doped Optical Fiber Fabricated through Vapor Phase Chelate Delivery Technique. Physica Status Solidi A-Appications and Materials Science, 216 (20). Art No-1900365. ISSN 0031-8965
 
Relation http://cgcri.csircentral.net/4760/