Quantum enhancement of accuracy and precision in optical interferometry

Kaiser, Florian; Vergyris, Panagiotis; Aktas, Djeylan; Babin, Charles; Labonté, Laurent; Tanzilli, Sébastien

doi:10.1038/lsa.2017.163

Cited by 41 publications

(32 citation statements)

References 40 publications

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“…At contrast, d-FWM allows determining higher dispersion terms with good accuracy. We are quite confident that quantum white-light interferometry (QWLI) [28] will offer a viable alternative for in-line "screening" of short fiber samples as the accuracy is only limited by quantum noise. This would allow testing different layout with high/low index material boron-or fluorine-doped, or core (co-)doping with germanium GeO 2 to adjust the dispersion, confinement (MFA), transparency range and nonlinearity.…”

Section: Discussionmentioning

confidence: 99%

High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

Delagnes¹,

Royon²,

Lhermite³

et al. 2018

Opt. Express

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Section: Discussionmentioning

confidence: 99%

High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

Delagnes¹,

Royon²,

Lhermite³

et al. 2018

Opt. Express

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“…However, it requires high spectral resolution [9,10] as well as a phase-stable interferometer. In addition, the GVD can only be obtained indirectly with unbalanced WLI; the approach may also suffer from errors arising from different curvefittings approaches used for dispersion extraction [7,11].…”

mentioning

confidence: 99%

“…Meanwhile, the potential advantages of quantum optics in metrology has led to the adaptation of some of the techniques mentioned above with nonclassical states of light such as entangled photons [12], and Fock states [11]. For example, an approach similar to the time-of-flight method [3] was used with energy-time entangled photons [12] to measure the second-order chromatic dispersion (GVD) of an optical fiber.…”

mentioning

confidence: 99%

“…We also note that, in contrast to the classical balanced spectral WLI [6], the common procedure of balancing the test and the reference arms is automatically obviated due to the frequency-conjugate nature of the biphotons. Furthermore, since our interferometer is common-path, both pump and downconverted photons travel in a single spatial mode; this removes the requirement for phase stabilization, an otherwise essential requirement in both classical [6], and quantum WLI [11] schemes.…”

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confidence: 99%

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Alignment-free dispersion measurement with interfering biphotons

et al. 2019

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Measuring the dispersion of photonic devices with small dispersion-length products is challenging due to the phase-sensitive, and alignment-intensive nature of conventional methods. In this letter, we demonstrate a quantum technique to extract the second-, and third-order chromatic dispersion of a short single-mode fiber using a fiber-based quantum nonlinear interferometer. The interferometer consists of two cascaded fiber-based biphoton sources, with each source acting as a nonlinear beamsplitter. A fiber under test is placed in between these two sources, and introduces a frequency-dependent phase that is imprinted upon the biphoton spectrum (interferogram) at the output of the interferometer. This interferogram contains within it the dispersion properties of the test fiber. Our technique has three novel features: (1) The broadband nature of the biphoton sources used in our setup allows accurate dispersion measurements on test devices with small dispersionlength products; (2) our all-fiber common-path interferometer requires no beam alignment or phase stabilization; (3) multiple phase-matching processes supported in our biphoton sources enables dispersion measurements at different wavelengths, which yields the third-order dispersion, achieved for the first time using a quantum optical technique.Chromatic dispersion is an important physical property that affects the propagation of optical pulses in photonic systems; in linear systems it is used for pulse shaping [1], while in nonlinear systems it plays an important role in soliton propagation, and affects the efficiency of many nonlinear interactions [2]. Dispersion characterization is then crucial for designing optimized photonic devices. Significant effort has been expended in past decades on extracting the chromatic dispersion of materials using classical light sources. Techniques such as time-of-flight [3], and modulation phase shift [4] were introduced to measure the dispersion of components with large dispersion-length products. Components with small dispersion-length products were characterized with temporal [5], and spectral [6] white-light interferometry (WLI), with the latter proving to be the more robust method against environmental noise [7].

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“…We should point out that the single photon input case is not limited to single photon, the same would be true for lasers, which would simplify the setups in practical applications. The present system is not limited to determination of the thermal dispersion of a birefringent crystal and can also be used to determine the wavelength dispersion [29] and electro-optical coefficient of the birefringent crystal. This study will thus be of great importance for understanding the nature of photon and for precision optical metrology.…”

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confidence: 99%

Revealing the Behavior of Photons in a Birefringent Interferometer

Zhou

Liu

et al. 2018

Phys. Rev. Lett.

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The interferometer is one of the most important devices for revealing the nature of light and for precision optical metrology. Although many experiments were performed for probing photon behavior in various configurations, a complete study of photon behavior in a birefringent interferometer has not been performed, to our knowledge. By using an environmental turbulence immune Mach-Zehnder interferometer, we observe tunable photonic beatings by rotating a birefringent crystal versus the temperature of the crystal for both the single photon and two photons. Furthermore, the two-photon interference fringes beat 2 times faster than the single-photon interference fringes. This beating effect is used to determine the thermal dispersion coefficients of the two principal refractive axes with a single measurement: the two-photon interference shows superresolution and high sensitivity. Obvious differences between two-photon and single-photon interference are also revealed in unbalanced situations. In addition, the influence of the photon bandwidth on the beating behaviors that come from polarization-dependent decoherence is also investigated. Our findings will be important for better understanding the behavior of two-photon interference in a birefringent interferometer and for precision optical metrology with quantum enhancement.

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Quantum enhancement of accuracy and precision in optical interferometry

Cited by 41 publications

References 40 publications

High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

Alignment-free dispersion measurement with interfering biphotons

Revealing the Behavior of Photons in a Birefringent Interferometer

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