Generation of narrowband photon-pairs in 1550 nm band using Type-II periodically poled lithium niobate waveguide

Fujii, Go; Motoya, Masayuki; Namekata, Naoto; Inoue, Shuichiro; Kurimura, Sunao

doi:10.1109/cleoe-iqec.2007.4386937

Cited by 1 publication

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“…Periodically poled lithium niobate (LiNbO 3 ) waveguides have been developed as photon pair sources [206] and as sources of polarization-entangled photon pairs by Type-II SPDC [207,208]. The computational results of the joint spectral intensity as well as the quantum purity estimation of SPDC photon pairs from a 25 mm long periodically poled KTP crystal at a temperature of 50°C in Type-II phase matching condition is shown in Figure 10.…”

Section: Non-linear Optical Quantum Sources and Resonatorsmentioning

confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

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Quantum-enhanced sensing and metrology pave the way for promising routes to fulfil the present day fundamental and technological demands for integrated chips which surpass the classical functional and measurement limits. The most precise measurements of optical properties such as phase or intensity require quantum optical measurement schemes. These non-classical measurements exploit phenomena such as entanglement and squeezing of optical probe states. They are also subject to lower detection limits as compared to classical photodetection schemes. Biosensing with non-classical light sources of entangled photons or squeezed light holds the key for realizing quantum optical bioscience laboratories which could be integrated on chip. Single-molecule sensing with such non-classical sources of light would be a forerunner to attaining the smallest uncertainty and the highest information per photon number. This demands an integrated non-classical sensing approach which would combine the subtle non-deterministic measurement techniques of quantum optics with the device-level integration capabilities attained through nanophotonics as well as nanoplasmonics. In this back drop, we review the underlining principles in quantum sensing, the quantum optical probes and protocols as well as state-of-the-art building blocks in quantum optical sensing. We further explore the recent developments in quantum photonic/plasmonic sensing and imaging together with the potential of combining them with burgeoning field of coupled cavity integrated optoplasmonic biosensing platforms.

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Section: Non-linear Optical Quantum Sources and Resonatorsmentioning

confidence: 99%