Hollow-core revolver fibre with a double-capillary reflective cladding

Косолапов, А. Ф.; Alagashev, G. K.; Kolyadin, A. N.; Pryamikov, Andrey D.; Biryukov, A. S.; Bufetov, I. A.; Dianov, Evgenii M

doi:10.1070/qel15972

Cited by 76 publications

(35 citation statements)

References 4 publications

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“…The maximum number of antiresonant or resonant layers in any azimuthal direction is specified since a simple structure with fewer layers is easier to fabricate. Currently, nested negative curvature fibers, which have been fabricated, only have at most two glass layers in any azimuthal direction [31][32][33]. The fiber core shape is also compared because a circular core shape is easier to draw due to surface tension in the fiber drawing process.…”

Section: Performance Comparison Of Polarization-maintaining Negative mentioning

confidence: 99%

“…Figure 1(b) shows a negative curvature fiber structure with two nested tubes in the y-direction using a wall thickness close to the resonance condition. Negative curvature fibers with one nested tube in each major tube have been fabricated [31][32][33]. With proper design, the effective indices and mode profiles of the glass modes will be different for the x-and y-polarizations.…”

Section: Introductionmentioning

confidence: 99%

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Polarization-filtering and polarization-maintaining low-loss negative curvature fibers

Wei¹,

Menyuk²,

Hu³

2018

Opt. Express

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We propose a polarization-filtering and polarization-maintaining negative curvature fiber in which two nested resonant tubes are added to a standard negative curvature fiber with one ring of tubes. The coupling between the glass modes in the nested resonant tubes and the fundamental core modes is used to increase the birefringence and differential loss for the fundamental core modes in the two polarizations. We show computationally that the birefringence and the loss ratio between the modes in the two polarizations can reach 10 and 850, respectively. Meanwhile, the low-loss mode has a loss that is lower than 0.02 dB/m. The relatively simple design of this polarization-maintaining negative curvature fiber will be useful in hollow-core fiber devices that are sensitive to polarization effects, such as fiber lasers, fiber interferometers, and fiber sensors.

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Section: Performance Comparison Of Polarization-maintaining Negative mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polarization-filtering and polarization-maintaining low-loss negative curvature fibers

Wei¹,

Menyuk²,

Hu³

2018

Opt. Express

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“…Similar fibres with <8 dB/km 8 have since been reported, an impressive loss level, but still too high for most data transmission applications It is now well known, that by adding a set of smaller nested tubes the loss of the fibre can theoretically be considerably reduced 9 . Various groups have reported good progress towards the realisation of such a Nested Antiresonant Nodeless Fibre (NANF), but all have so far failed to achieve the required structure/symmetry necessary for low loss 10,11 . Recently, a significant step towards the demonstration of a low loss ARF was reported using a modification of the NANF concept, where additional radial double reflections were obtained by inserting glass sheets in the stack 12 .…”

Section: Introductionmentioning

confidence: 99%

Record Low-Loss 1.3dB/km Data Transmitting Antiresonant Hollow Core Fibre

Bradley

Hayes

Chen

et al. 2018

2018 European Conference on Optical Communication (ECOC)

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“…broadband nonlinear processes) or for high power delivery. During the last decade considerable research has focused on lowering the loss in HC-ARFs and many different structures have been proposed based on: a Kagomé cladding [16,19], a hexagram structure [20], a double anti-resonance layer [21], tubular "negative curvature" structure [22,23] and nested tubular structure [24][25][26]. These have resulted in significant improvement of properties such as low bend-loss [27], ultra-large bandwidth [8] and high damage-threshold [28,29].…”

Section: Introductionmentioning

confidence: 99%

Broadband high birefringence and polarizing hollow core antiresonant fibers

Mousavi¹,

Sandoghchi²,

Richardson³

et al. 2016

Opt. Express

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Abstract:We systematically study different approaches to introduce high birefringence and high polarization extinction ratio in hollow core antiresonant fibers. Having shown the ineffectiveness of elliptical cores to induce large birefringence in hollow core fibers, we focus on designing and optimizing polarization maintaining Hollow Core Nested Antiresonant Nodeless Fibers (HC-NANF). In a first approach, we create and exploit anti-crossings with glass modes at different wavelengths for the two polarizations. We show that suitable low loss high birefringence regions can be obtained by appropriately modifying the thickness of tubes along one direction while leaving the tubes in the orthogonal direction unchanged and in antiresonance. Using this concept, we propose a new birefringent NANF design providing low loss (~40dB/km) and high birefringence (>10 −4 ) over a record bandwidth of ~550nm, and discuss how bandwidth can be traded off to further reduce the loss to a few dB/km. Finally, we propose a polarization mode-stripping technique in the birefringent NANF. As a demonstration, we propose a polarizing birefringent NANF design that can achieve orthogonal polarization loss ratios as large as 30dB over the C-band while eliminating any undesirable polarization coupling effect thereby resulting in a single polarization output in a hollow core fiber regardless of the input polarization state.

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Hollow-core revolver fibre with a double-capillary reflective cladding

Cited by 76 publications

References 4 publications

Polarization-filtering and polarization-maintaining low-loss negative curvature fibers

Polarization-filtering and polarization-maintaining low-loss negative curvature fibers

Record Low-Loss 1.3dB/km Data Transmitting Antiresonant Hollow Core Fibre

Broadband high birefringence and polarizing hollow core antiresonant fibers

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