Development of Low Loss, Wide Bandwidth Hollow Core Photonic Bandgap Fibers

Petrovich, M. N.; Baddela, N. K.; Wheeler, Natalie V.; Numkam, E.; Slavı́k, Radan; Gray, D. R.; Hayes, J. R.; Wooler, J. P.; Poletti, Francesco; Richardson, David J.

doi:10.1364/ofc.2013.oth1j.3

Cited by 4 publications

(3 citation statements)

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“…In this case, the TDF's length can be adjusted to optimize the gain for a particular application or wavelength range. For example, HC-PBGF is predicted to have a low loss transmission between 1900 and 2100 nm [36]. For this fiber, it is unnecessary to have amplification at the lower wavelengths, and, hence, by increasing the TDF's length, higher pump powers are not required.…”

Section: Thulium-doped Fiber Amplifiersmentioning

confidence: 99%

Key enabling technologies for optical communications at 2000 nm

et al. 2018

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Section: Thulium-doped Fiber Amplifiersmentioning

confidence: 99%

Key enabling technologies for optical communications at 2000 nm

et al. 2018

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“…for generating laser-induced plasmas and particle acceleration), and medicine (e.g. for various imaging modalities and surgical procedures) [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Rare earth doped LMA fibers are essential to the development of the lasers themselves and passive variants are important in fiber-based delivery of the beam directly from the laser output to where the laser light is ultimately to be used (which is often over a distance much longer than the length of fiber used in the laser itself). While hollow core bandgap fibers have recently garnered a lot of attention for high power beam delivery applications [6], here we seek a fiber design that is applicable to fiber lasers and amplifiers, which require a rare-earth doped silica glass core. Besides supporting a large fundamental mode (FM) area, state-of-the-art LMA fibers also need to be able to provide a number of critically important practical features.…”

Section: Introductionmentioning

confidence: 99%

Leakage channel fibers with microstuctured cladding elements: A unique LMA platform

Dasgupta¹,

Hayes²,

Richardson³

2014

Opt. Express

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Abstract:We present a novel design of leakage channel fiber (LCF) that incorporates an air-hole lattice to define the modal filtering characteristics. The approach has the potential to offer single-mode, large mode area (LMA) fibers in a single-material platform with bend loss characteristics comparable to all-solid (LCFs) whilst at the same time providing significant fabrication benefits. We compare the performance of the proposed fiber with that of rod-type photonic crystal fibers (PCFs) and all-solid LCFs offering a similar effective mode area of ~1600μm 2 at 1.05μm. Our calculations show that the proposed fiber concept succeeds in combining the advantages of the use of small air holes and the larger design space of rod-type PCFs with the improved bend tolerance and greater higher order mode discrimination of all-solid LCFs, while alleviating their respective issues of rigidity and restricted material design space. We report the fabrication and experimental characterization of a first exemplar fiber, which we demonstrate offers a single-mode output with a fundamental mode area ~1440µm 2 at 1.06µm, and that can be bent down to a radius of 20cm with a bend loss of <3dB/turn. Finally we show that the proposed design concept can be adopted to achieve larger mode areas (> 3000µm 2 ), albeit at the expense of reduced bend tolerance.

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