Progress in hollow core photonic crystal fiber for atomic vapour based coherent optics

Bradley, Tom; Wang, Y. Y.; Alharbi, Meshaal; Dutin, Coralie Fourcade; Mangan, B. J.; Wheeler, N.V.; Benabid, Fetah

doi:10.1117/12.915281

Cited by 1 publication

(2 citation statements)

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“…Figure 6(b) also shows the calculated group velocity dispersion (GVD), which shows an anomalous dispersion over most of the transmission windows with a value of ∼2 ps·nm −1 ·km −1 around the wavelength range of interest, 1500-1600 nm. By scaling down the pitch to 15 µm, fibres with loss figure of ∼70 dB/km and bandwidth from 670 to 1400 nm (∼230 THz) have also been fabricated [34] .…”

Section: Conventional Kagome Hc-pcfmentioning

confidence: 99%

“…In 2011, a new avenue [31] was explored by shaping the core-surround structure from a circle (or polygon) to a hypocycloid in order to enhance the coupling inhibition at the interface of the core and the cladding. Such hypocycloidcore Kagome HC-PCF fibre shows an attenuation figure of 30-40 dB/km@1550 nm [32,33] and 70 dB/km@1064 nm [34] and maintains a large transmission window around 200 THz. This result beats the conventional circle-core Kagome fibre in terms of optical attenuation and bandgap HC-PCF in transmission bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Hollow-core photonic crystal fibre for high power laser beam delivery

Wang

Alharbi

Bradley

et al. 2013

High Pow Laser Sci Eng

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We review the use of hollow-core photonic crystal fibre (HC-PCF) for high power laser beam delivery. A comparison of bandgap HC-PCF with Kagome-lattice HC-PCF on the geometry, guidance mechanism, and optical properties shows that the Kagome-type HC-PCF is an ideal host for high power laser beam transportation because of its large core size, low attenuation, broadband transmission, single-mode guidance, low dispersion and the ultra-low optical overlap between the core-guided modes and the silica core-surround. The power handling capability of Kagome-type HC-PCF is further experimentally demonstrated by millijoule nanosecond laser spark ignition and ∼100 µJ sub-picosecond laser pulse transportation and compression.

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Section: Conventional Kagome Hc-pcfmentioning

confidence: 99%