Mode expansion and Bragg filtering for a high-fidelity fiber-based photon-pair Source

Ling, Alexander; Fan, Jingyun; Migdall, Alan L.

doi:10.1364/oe.17.021302

Cited by 30 publications

(20 citation statements)

References 41 publications

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“…On the histogram of figure 8, we get a CAR equal to 63 for a generation efficiency of about 10 −4 pairs per pulse at the output of the fiber. Table 1 summarizes the parameters of interest for a valuable comparison between our experimental results and previously reported ones concerning the generation of correlated photon pairs in χ (3) fibered materials: microstructured silica-core fibers [8,20,41], highly nonlinear non-microstructured silica fibers [42], and chalcogenide fibers [16]. This comparison is complex because of the numerous parameters involved in the interpretation of the obtained performances.…”

Section: Coincident Countsmentioning

confidence: 86%

Spontaneous four-wave mixing in liquid-core fibers: towards fibered Raman-free correlated photon sources

2015

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We experimentally demonstrate, for the first time to our knowledge, the generation of correlated photon pairs in a liquid-core photonic crystal fiber. Moreover, we show that, thanks to the specific Raman properties of liquids, the Raman noise (which is the main limitation of the performance of silica-core fiber-based correlated photon pair sources) is highly reduced. With a demonstrated coincident-to-accidental ratio equal to 63 and a pair generation efficiency of about 10 −4 per pump pulse, this work contributes to the development of high-quality correlated photon pair sources for quantum communications.

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Section: Coincident Countsmentioning

confidence: 86%

Spontaneous four-wave mixing in liquid-core fibers: towards fibered Raman-free correlated photon sources

2015

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“…Past this region, the Raman noise is less detrimental. This approach has been mostly investigated in PCF 15,16,[28][29][30][31] since the versatility of its design allows the generation of photon-pairs with a large detuning from the pump wavelength. However, higher order RS processes still corrupt the parametric photon-pair generation, as described in 13,15,32 .…”

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confidence: 99%

Raman-free fibered photon-pair source

Cordier

Delaye

Gérôme

et al. 2020

Sci Rep

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Raman-scattering noise in silica has been the key obstacle toward the realisation of high quality fiber-based photon-pair sources. Here, we experimentally demonstrate how to get past this limitation by dispersion tailoring a xenon-filled hollow-core photonic crystal fiber. The source operates at room temperature, and is designed to generate Raman-free photon-pairs at useful wavelength ranges, with idler at the telecom, and signal at a visible range. We achieve a coincidence-to-accidentals ratio as high as 2740 combined with an ultra low heralded gH (0) = 0.002, indicating a very high signal to noise ratio and a negligible multi-photon emission probability. Moreover, by gas-pressure tuning, we demonstrate the control of photon frequencies over a range as large as 13 THz, covering S-C and L telecom band for the idler photon. This work demonstrates that hollow-core photonic crystal fiber is an excellent platform to design high quality photon-pair sources, and could play a driving role in the emerging quantum technology.Among the numerous platforms that have been tested in quantum information, χ (2) nonlinear media and, in particular, bulk crystals have been historically the workhorse for photon-pair generation due to the relative ease in terms of experimental setup, their cost and their availability 1 . Four-wave mixing mechanism in χ (3) media, and in particular waveguides and optical fibers have gained much attention in the recent years because of the new prospects they offer in terms of scalability and integrability. For instance, more than 550 silicon-based photonic components have been recently integrated on a single silicon chip, including 16 identical four-wave mixing photon-pair sources 2 . Alternatively, fiber-based photon-pair sources have many advantages; they are easily manufacturable, cost effective, robust, alignment-free and compatible with fiber optical network since the photon-pairs are directly emitted in the fundamental transverse guided mode of a fiber. Furthermore, and unlike silicon-based materials, optical fibers don't suffer from two-photon absorption or free carriers effect 3 , and a dispersion that can be readily engineered.Within the fiber-related endeavors, photon-pairs have been produced in many different architectures encompassing singlemode fiber 4, 5 , dispersion-shifted fiber 6-9 , birefringent single-mode fiber 10, 11 , micro/nano-fiber 12, 13 and photonic crystal fiber (PCF) [14][15][16][17][18][19][20] . However, the performances of these photon-pair sources are most often plagued by a concomitant nonlinear effect, Raman-scattering (RS). Indeed, in addition to the four-wave mixing process leading to photon-pair generation, an interaction between the pump and phonons in the medium results in the generation of scattered photons. Due to the amorphous nature of silica (i.e. the fiber core material), the Raman gain is broadband and continuous 21 , thus generating a large amount of scattered photons around the pump frequency. In fact, regardless of the photon-pair frequencies, some Rama...

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“…Using a PCF with a short ZDW, together with a Ti:Sapphire pump laser, means that both the signal and idler can lie within the operating range of high efficiency, silicon-based avalanche photodiodes (500-900 nm), and several such photon sources have been demonstrated to date [4,38,7,39,3]. Operating with these wavelengths can therefore allow higher potential overall efficiencies (combined optical loss and detector efficiency) than can typically be achieved when operating in the anomalous dispersion regime when both the signal and idler photons are in the near infrared range, where detector technology is less well developed.…”

Section: Photonic Crystal Fiber Sources In the Normal Dispersion Regimementioning

confidence: 99%

“…Pair photon generation has been demonstrated in photonic crystal fiber using a wide range of different pump sources with generated photons covering a considerable wavelength range, from the visible to telecom wavelengths in the near infrared, making them suitable for a wide range of applications [3][4][5][6][7]. Pair photon generation has been demonstrated in photonic crystal fiber using a wide range of different pump sources with generated photons covering a considerable wavelength range, from the visible to telecom wavelengths in the near infrared, making them suitable for a wide range of applications [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%