Visualizing the photonic band gap in hollow core photonic crystal fibers

Couny, F.; Sabert, H.; Roberts, P. J.; Williams, Daisy; Tomlinson, A. M.; Mangan, B. J.; Farr, Lee E.; Knight, Jonathan C.; Birks, T. A.; Russell, P. St. J.

doi:10.1364/opex.13.000558

Cited by 22 publications

(11 citation statements)

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“…We performed angular-resolved scattering measurements [22,23] on the fibre of Fig. 1(a), with a 20 µm diameter core formed by omitting 19 unit cells from a cladding of 3.9 µm pitch.…”

Section: Angular-resolved Scattering Measurementsmentioning

confidence: 99%

Ultimate low loss of hollow-core photonic crystal fibres

Roberts

Couny²,

Sabert³

et al. 2005

Opt. Express

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779

463

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Hollow-core photonic crystal fibres have excited interest as potential ultra-low loss telecommunications fibres because light propagates mainly in air instead of solid glass. We propose that the ultimate limit to the attenuation of such fibres is determined by surface roughness due to frozenin capillary waves. This is confirmed by measurements of the surface roughness in a HC-PCF, the angular distribution of the power scattered out of the core, and the wavelength dependence of the minimum loss of fibres drawn to different scales.

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“…We performed angular-resolved scattering measurements [22,23] on the fibre of Fig. 1(a), with a 20 µm diameter core formed by omitting 19 unit cells from a cladding of 3.9 µm pitch.…”

Section: Angular-resolved Scattering Measurementsmentioning

confidence: 99%

Ultimate low loss of hollow-core photonic crystal fibres

Roberts

Couny²,

Sabert³

et al. 2005

Opt. Express

Self Cite

779

463

View full text Add to dashboard Cite

show abstract

“…The effect observed described here was studied more fully in Ref. [17] in which the fiber was immersed in index-matching fluid to enable access to the entire photonic band gap rather than just the band-gap edge.…”

Section: Scattered Lightmentioning

confidence: 99%

What do you see in photonic crystal fibers?

Knight

2010

Front. Optoelectron. China

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Photonic crystal fibers have been a source of colorful and intriguing optical images from the time they were first developed. The images are all the more captivating because they often transmit information about the basic optical properties of the fiber-sometimes in a visually spectacular way. Some of the more significant effects that are apparent in this way are demonstrated, along with an interpretation of their meaning.

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“…Focusing on the wavelength region close to the lowwavelength edge of the bandgap, coupling to fiber surface modes in practical HC PCF is promoted by tunneling mechanisms [17]. The light in this region is less well confined and, therefore, it is natural to deduce that the action on fiber of some physical parameters should accompany a relatively strong loss in fiber.…”

Section: Principle Of Operationmentioning

confidence: 99%

Spectral characterization of a photonic bandgap fiber for sensing applications

et al. 2010

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We study the measurand-induced spectral shift of the photonic bandgap edge of a hollow-core photonic crystal fiber. The physical measurands considered are strain, temperature, curvature, and twist. A noticeable sensitivity to strain, temperature, and twist is observed, with a blueshift to increase strain and twist. An increase in temperature induces a redshift. On the other hand, curvature has no observable effect on the spectral position of the photonic bandgap edge.

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Visualizing the photonic band gap in hollow core photonic crystal fibers

Abstract: The light radiated from the guided mode of a hollow core photonic crystal fiber into free space is measured as a function of angle and wavelength. This enables the direct experimental visualization of the photonic band gap and the identification of localized modes of the core region.

Cited by 22 publications

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Ultimate low loss of hollow-core photonic crystal fibres

Ultimate low loss of hollow-core photonic crystal fibres

What do you see in photonic crystal fibers?

Spectral characterization of a photonic bandgap fiber for sensing applications

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