Evanescent Kerr effect in liquid-immersed optical nanofibers

Fanjoux, Gil; Chrétien, Jacques R.; Godet, Adrien; Huy, Kien Phan; Beugnot, Jean‐Charles; Sylvestre, Thibaut

doi:10.1117/12.2556093

Cited by 2 publications

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“…Thanks to its small diameter, this component has a strong confinement of light inside the silica enabling the generation of nonlinear effects such as the generation of supercontinuum [1]. It has also an intense evanescent field exploited for optical sensing [2], optical traps for quantum applications [3] and the excitation of non linearities when immersed in liquids [4,5,6]. Despite all these attractive applications, the nanofiber performances are limited by the degradation of its transmittance during time and by its short lifetime.…”

Section: Context and Motivationmentioning

confidence: 99%

Long-time optical transmittance measurements of silica nanofibers

Bouhadida

Lebrun

2020

EPJ Web Conf.

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We perform long-time measurements of the optical silica transmittance during several months in different environments and with different nanofiber lengths. These measurements are repeatable and give guidelines to control and to improve the lifetime and the performances of the nanofiber. The dust particles on the nanofiber surface is the fundamental reason behind its degradation. Enhancing the cleanness conditions of the nanofiber environment makes its lifetime increases significantly (from some hours to some months) and enables to avoid the dramatic decrease of its transmittance even after months. The nanofiber length does not contribute to the nanofiber transmittance degradation. Stabilizing the nanofiber transmittance after its decrease is possible by putting in in a dust free box.

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Section: Context and Motivationmentioning

confidence: 99%

Long-time optical transmittance measurements of silica nanofibers

Bouhadida

Lebrun

2020

EPJ Web Conf.

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“…In this paper, we propose a new solution to realize SPDC in fibers using a tapered standard telecommunication fiber [19][20][21][22][23]. The second-order nonlinearity is established through surface dipole and bulk multipole nonlinearities, that are exalted due to the sub-wavelength diameter of the nanofiber.…”

Section: Introductionmentioning

confidence: 99%

Modeling photon pair generation by second-order surface nonlinearity in silica nanofibers

Azzoune¹,

Delaye

Pauliat

2021

J. Opt. Soc. Am. B

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In this paper, we present a design of an all-fiber source of correlated photon pairs based on standard telecommunications tapered fibers. We examine the generation of correlated photon pairs using parametric process (") in silica tapered optical fibers. This nonlinear process is ensured thanks to surface dipole and bulk multipole nonlinearities. The process of photons creation is modeled by taking into account the vector aspect of the propagation of the optical field in a silica nanofiber. The phase matching is provided by propagating the pump field in one spatial mode, while generating a photon pair in another spatial mode. The generation efficiency of photon pairs depends on diameter uniformity of the nanofiber after the manufacturing process. We size this nanofiber for a good optimization of photon pair generation efficiency, we report that the tolerance in diameter uniformity is = 2 nm for a generation rate of photon pairs estimated to $% ≈ 22 000 pairs/s, for 1 W power pump and a nanofiber length of 1.1 mm. Deposits on the nanofiber can be used in order to relax the manufacturing constraints on diameter to maximize the generation rate of photon pairs. As an example, the use of Polytetrafluoroethylene (PTFE) on the nanofiber applied as a cladding whose thickness is infinite makes it possible to relax the constraints on the nanofiber diameter. For the same = 2 nm, a generation rate of photon pairs estimated to $% ≈ 78 000 pairs/s for 1 W power pump and a nanofiber length of 2.4 mm is predicted.

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Evanescent Kerr effect in liquid-immersed optical nanofibers

Cited by 2 publications

References 0 publications

Long-time optical transmittance measurements of silica nanofibers

Long-time optical transmittance measurements of silica nanofibers

Modeling photon pair generation by second-order surface nonlinearity in silica nanofibers

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