Broadband robustly single-mode hollow-core PCF by resonant filtering of higher-order modes

Uebel, Patrick; Günendi, M. C.; Frosz, Michael H.; Ahmed, Goran; Edavalath, N. N.; Ménard, Jean‐Michel; Russell, P. St. J.

doi:10.1364/ol.41.001961

Cited by 254 publications

(153 citation statements)

References 19 publications

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“…surrounding the hollow core, and the cladding consists of either a Kagome-type lattice [7], or a single ring of touching [8] or non-touching tubes [9], [10]. However, the vast majority of ARFs reported to date, including all those with a Kagome lattice and with touching tubes, exhibit a structured transmission spectrum, with multiple loss peaks arising from resonant coupling between air and glass modes located at nodes in the cladding.…”

Section: Introductionmentioning

confidence: 99%

Antiresonant Hollow Core Fiber with Octave Spanning Bandwidth for Short Haul Data Communications

Hayes

Sandoghchi

Bradley

et al. 2016

Optical Fiber Communication Conference Postdeadline Papers

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Abstract-We report an effectively single mode tubular antiresonant hollow core fiber with minimum loss of ~25 dB/km at ~1200 nm, and an extremely wide low loss transmission window (lower than 30 dB/km loss from 1000 nm to 1400 nm and 6 dB bandwidth exceeding 1000 nm). Despite the relatively large mode field diameter of 32 µm, the fiber can be interfaced to SMF28 to produce fully connectorized samples. Exploiting an excellent modal purity arising from large modal differential loss and low intermodal coupling, we demonstrate penalty-free 10G on-off keying data transmission through 100m of fiber, at wavelengths of 1065, 1565 and 1963nm.Index Terms-Fiber optics communications, hollow core optical fibers, low latency, microstructured optical fibers.

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Section: Introductionmentioning

confidence: 99%

Antiresonant Hollow Core Fiber with Octave Spanning Bandwidth for Short Haul Data Communications

Hayes

Sandoghchi

Bradley

et al. 2016

Optical Fiber Communication Conference Postdeadline Papers

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“…Guiding by anti-resonant reflection, SR-PCF has gained popularity because of its excellent guidance properties and simple structure. It provides broadband transmission bands with low loss (as low as 7.7 dB/km [24]), although phasematched coupling to core-wall resonances creates high-loss bands at wavelengthswhere t is the capillary wall thickness, q the order of the resonance and n is the refractive index of the glass [25]. Carefully designed fibers with small values of t provide good transmission in the near-infrared and visible spectral regions, and the impact of the loss bands on the pulse dynamics can be minimized by shifting them far from the pump wavelength.…”

mentioning

confidence: 99%

“…Carefully designed fibers with small values of t provide good transmission in the near-infrared and visible spectral regions, and the impact of the loss bands on the pulse dynamics can be minimized by shifting them far from the pump wavelength. Away from these bands the modal refractive index can be approximated by a capillary model [25], yielding anomalous dispersion in the evacuated fiber. When the fiber is filled with a noble gas, the optical Kerr effect and gas ionization are the dominant nonlinearities (the light-glass overlap is very small, and the system is effectively Raman-free [23]).…”

mentioning

confidence: 99%

“…where t is the capillary wall thickness, q the order of the resonance and n is the refractive index of the glass [25]. Carefully designed fibers with small values of t provide good transmission in the near-infrared and visible spectral regions, and the impact of the loss bands on the pulse dynamics can be minimized by shifting them far from the pump wavelength.…”

mentioning

confidence: 99%

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Generation of microjoule pulses in the deep ultraviolet at megahertz repetition rates

Köttig¹,

Tani²,

Biersach³

et al. 2017

Optica

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101

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Although ultraviolet (UV) light is important in many areas of science and technology, there are very few if any lasers capable of delivering wavelength-tunable ultrashort UV pulses at MHz repetition rates. Here we report the generation of deep-UV laser pulses at MHz repetition rates and µJ-energies by means of dispersive wave (DW) emission from self-compressed solitons in gas-filled single-ring hollow-core photonic crystal fiber (SR-PCF). Pulses from an ytterbium fiber laser (~300 fs) are first compressed to ~25 fs in a SR-PCF-based nonlinear compression stage, and subsequently used to pump a second SR-PCF stage for broadband DW generation in the deep UV. The UV wavelength is tunable by selecting the gas species and the pressure. At 100 kHz repetition rate, a pulse energy of 1.05 µJ was obtained at 205 nm (average power 0.1 W), and at 1.92 MHz, a pulse energy of 0.54 µJ was obtained at 275 nm (average power 1.03 W).Ultraviolet (UV) laser pulses are in great demand for a wide range of applications, including photolithography [1], spectroscopy [2] and femtosecond pump-probe measurements [3]. Despite this, the range of available sources is limited. Apart from large-scale synchrotrons and free-electron lasers, very few lasers directly emit UV light, examples being excimer and some solid-state lasers (e.g., cerium-based [4]). An alternative approach involves upconversion of visible or near-infrared laser light via the generation of discrete harmonics in χ (2) and χ (3) media [5,6]. Using an optical parametric amplifier as pump laser provides wavelength-tunability in the UV, and with careful design very short pulse durations can be achieved [7]. Although such systems are flexible, they are also complex, and repetition rate scaling is challenging because of the high pump energies required. On the other hand, fiber and thin-disk technology allows repetition rate scaling in the near-infrared, pushing the frontiers of ultrafast lasers to unprecedented average power levels [8,9]. Much research is devoted to using these lasers for the generation of extreme UV light via high-harmonic generation [10,11]. To this end, pulse compression schemes are commonly employed, based for example on spectral broadening in bulk material [12] or gas-filled capillary and hollow-core photonic crystal fibers (HC-PCFs). This has allowed pulse compression from hundreds of fs to the few-cycle regime in set-ups involving two fiber stages [13,14]. In capillary fibers, spectral broadening normally occurs via self-phase modulation (SPM) in the normal dispersion regime, which requires the use of negatively chirped mirrors after the fiber and compresses the pulses in time by compensating for the induced chirp. If instead soliton-effect self-compression in the anomalous dispersion regime is used, there is no need for dispersion compensation. While this is difficult to achieve in large-bore capillary fibers (anomalous dispersion can only be achieved at very low gas pressures), it is straightforward in HC-PCFs, which deliver low loss even for small core di...

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“…It turned out that this RF structure has lower optical losses than the previous one. Subsequently, RFs with non-contacting capillaries in the cladding were used in many works (see, e.g., [32,34,40,41]). …”

Section: Rfs With Touching and Non-touching Capillaries In A Claddingmentioning

confidence: 99%

Revolver Hollow Core Optical Fibers

Bufetov

Косолапов

Pryamikov

et al. 2018

Fibers

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Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding parameters of RFs are discussed. The optical properties and possible applications of RFs are reviewed. Special attention is paid to the mid-IR hydrogen Raman lasers that are based on RFs and generating in the wavelength region from 2.9 to 4.4 μm.

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Broadband robustly single-mode hollow-core PCF by resonant filtering of higher-order modes

Cited by 254 publications

References 19 publications

Antiresonant Hollow Core Fiber with Octave Spanning Bandwidth for Short Haul Data Communications

Antiresonant Hollow Core Fiber with Octave Spanning Bandwidth for Short Haul Data Communications

Generation of microjoule pulses in the deep ultraviolet at megahertz repetition rates

Revolver Hollow Core Optical Fibers

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