Yb-doped Pedestal Silica Fiber through Vapor Phase Doping for Pulsed Laser Applications

Saha, Maitreyee; Chowdhury, Sourav; Shekhar, Nishant Kumar; Pal, Anand; Pal, Mrinmay; Guha, Chandan; Sen, Ranjan

doi:10.1109/lpt.2016.2524040

Cited by 8 publications

(1 citation statement)

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“…into the preform/fiber core through prominent methods of solution doping (SD), vapor phase chelate delivery (VPCD), and direct nanoparticle deposition (DND) . These techniques have been quite successful in embedding RE ions in multitude of optical waveguide structures, such as step, trench, and pedestal refractive‐index profiles for specific applications . Recent developments in spatial division multiplexing (SDM) and multimodal nonlinear pulse propagation have generated renewed interest in optical fibers with graded refractive‐index (GRIN) profiles .…”

Section: Introductionmentioning

confidence: 99%

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

Choudhury

Shekhar

Dhar

et al. 2019

Physica Status Solidi (a)

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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 μm 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.

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Section: Introductionmentioning

confidence: 99%