Journal article
Multichannel Photon-Pair Generation with Strong and Uniform Spectral Correlation in a Silicon Microring Resonator
Department of Photonics Engineering, Technical University of Denmark1
Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark2
Technical University of Denmark3
Academy of Military Sciences4
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark5
Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark6
We experimentally demonstrate a photon-pair source, based on continuous-wave pumped spontaneous four-wave mixing in a silicon microring resonator, which efficiently generates photon pairs with high coincidence counts, high brightness, and high coincidence-to-accidental ratio at multiple resonance wavelengths matching a standard International Telecommunication Union (ITU) frequency grid.
The signal-idler joint spectral intensity is measured with a very high resolution of 2pm over multiple wavelengths by an optical spectrum analyzer through probe-swept stimulated four-wave mixing, allowing an accurate quantification of the spectral correlation. Strong spectral correlation and uniform degree of quantum correlation are observed from the source, and the measured amount of spectral modes agrees well with that obtained by unheralded second-order correlation measurements.
Language: | English |
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Year: | 2019 |
ISSN: | 23317019 |
Types: | Journal article |
DOI: | 10.1103/PhysRevApplied.12.034053 |
ORCIDs: | 0000-0002-7831-2122 , Shi, Xiaodong , Christensen, Jesper Bjerge , Ou, Haiyan and Rottwitt, Karsten |