Frequency doubling of incoherent light from a superluminescent diode in a periodically poled lithium niobate waveguide crystal

Kurzke, Henning; Kiethe, Jan; Heuer, Axel; Jechow, Andreas

doi:10.1088/1612-202x/aa6889

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…Together with the detected photon rates of 3.4×10 5 counts s -1 , these results promise enhancement of a large number of applications in classical and quantum optics [8][9][10][11][12][13][14][15][16]. The presented source possesses several important advantages compared to conventional thermal light sources based on amplified spontaneous emission [12,[29][30][31] or parametric down conversion [10,26,28]. While sharing their technical simplicity, it allows for direct detection of ideal bunching with conventional visible-range single-photon detectors, a crucial property for its feasible benchmarking.…”

Section: Discussionmentioning

confidence: 65%

“…A number of experimental teams have recently attempted to realize a thermal light source with large spectral bandwidth either as a principal resource or as a side result of attempts to engineer a nonlinear interaction with a high degree of mode purity [12,[25][26][27][28][29][30][31]. Out of these, the sources utilizing the process of amplified spontaneous emission [12,[29][30][31] seem to offer technically feasible spectral bandwidth in a few nanometer regime. However, similarly to several characterizations of light statistics coming from blackbody light sources [32,33], the extreme spectral width practically hinders a direct confirmation of ideal thermal statistics with currently available singlephoton detectors.…”

Section: Introductionmentioning

confidence: 99%

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Generation of ideal thermal light in warm atomic vapor

et al. 2018

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We present the experimental generation of light with directly observable close-to-ideal thermal statistical properties. The thermal light state is prepared using a spontaneous Raman emission in a warm atomic vapor. The photon number statistics are evaluated by both the measurement of secondorder correlation function and by the detailed analysis of the corresponding photon number distribution, which certifies the quality of the Bose-Einstein statistics generated by a natural physical mechanism. We further demonstrate the extension of the spectral bandwidth of the generated light to hundreds of MHz domain while keeping the ideal thermal statistics, which suggests a direct applicability of the presented source in a broad range of applications including optical metrology, tests of robustness of quantum communication protocols, or quantum thermodynamics.

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Generation of ideal thermal light in warm atomic vapor

et al. 2018

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“…There have also been mostly sporadic attempts to achieve nonlinear optical phenomena with low power, incoherent light or at least to reproduce functionality of some nonlinear photonic devices without lasers [15][16][17][18][19][20][21][22][23][24][25]. However, even though the number of such works is gradually increasing and they attract keen interest of researchers in the field of nonlinear optics, they have not had a significant impact yet.…”

Section: Fig 1: (A) Generation Of New Optical Frequencies Via a Nonli...mentioning

confidence: 99%

Coupling light and sound: giant nonlinearities from oscillating bubbles and droplets

Maksymov

Greentree

2019

Nanophotonics

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Nonlinear optical processes are vital for fields including telecommunications, signal processing, data storage, spectroscopy, sensing, and imaging. As an independent research area, nonlinear optics began with the invention of the laser, because practical sources of intense light needed to generate optical nonlinearities were not previously available. However the high power requirements of many nonlinear optical systems limit their use, especially in portable or medical applications, and so there is a push to develop new materials and resonant structures capable of producing nonlinear optical phenomena with low-power light emitted by inexpensive and compact sources. Acoustic nonlinearities, especially giant acoustic nonlinear phenomena in gas bubbles and liquid droplets, are much stronger than their optical counterparts. Here, we suggest employing acoustic nonlinearities to generate new optical frequencies, thereby effectively reproducing nonlinear optical processes without the need for laser light. We critically survey the current literature dedicated to the interaction of light with nonlinear acoustic waves and highly-nonlinear oscillations of gas bubbles and liquid droplets. We show that the conversion of acoustic nonlinearities into optical signals is possible with low-cost incoherent light sources such as lightemitting diodes, which would usher new classes of low-power photonic devices that are more affordable for remote communities and developing nations, or where there are demanding requirements on size, weight and power. . 1: (a) Generation of new optical frequencies via a nonlinear optical interaction. High-power monochromatic laser light interacts with the nonlinear optical medium, e.g. a dielectric microresonator, to generate new optical frequencies [9]. (b, c) The nonlinear properties of sound can be used to generate optical nonlinearities without the need for high-power laser light. Low-power light couples to a sound wave via a deformable fluid, e.g. gas bubble or liquidmetal nanoparticle, exploiting strong nonlinear acoustic effects. This converts acoustic frequencies to the optical domain, effectively reproducing the result of the nonlinear optical interaction in (a). Images from www.freeimages.com and www.dreamstime.com. FIG

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“…It has to be pointed out, that real "classical" light sources can emit light with a photon statistics being a mixture of coherent and thermal like. Several studies have been carried out with semiconductor light sources such as high power superluminescent diodes [89,90].…”

Section: Appendix B3 Tpa and Photon Statisticsmentioning

confidence: 99%

Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy

Jechow¹

2020

Preprint

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The interaction between single or a fixed number of photons with a single absorber is of fundamental interest in quantum technology. The harnessing of light matter interactions at the single particle limit has several potential applications ranging from quantum communication and quantum metrology to quantum imaging. In this letter, a setup for heralded two-photon absorption at the single absorber level is proposed. The setup is based on a heralded two-photon source utilizing spontaneous parametric down-conversion, entanglement swapping and sum frequency generation for joint detection. The feasibility of the scheme is discussed by reviewing recent achievements in utilizing entangled and correlated photons for two-photon absorption as well as single photon absorption experiments at the limit of single absorbers in the context of applications in imaging (here mainly microscopy) and spectroscopy.

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Frequency doubling of incoherent light from a superluminescent diode in a periodically poled lithium niobate waveguide crystal

Cited by 11 publications

References 31 publications

Generation of ideal thermal light in warm atomic vapor

Generation of ideal thermal light in warm atomic vapor

Coupling light and sound: giant nonlinearities from oscillating bubbles and droplets

Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy

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