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Generation of broadband correlated photon-pairs in short thin-film lithium-niobate waveguides
- Source :
- Optics Express. 27:38521
- Publication Year :
- 2019
- Publisher :
- The Optical Society, 2019.
-
Abstract
- An efficient source of quantum-correlated photon-pairs that is integrable with existing silicon-electronics fabrication techniques is desirable for use in quantum photonic integrated circuits. Here we demonstrate signal-idler photon pairs with high coincidence-to-accidental count ratios of over 103 on a coarse wavelength-division-multiplexing grid that spans 140 nm by using a 300-μm-long poled region in a thin-film periodically-poled lithium-niobate ridge waveguide bonded to silicon. The pairs are generated via spontaneous parametric downconversion pumped by a continuous-wave tunable laser source. The small mode area of the waveguide allows for efficient interaction in a short length of the waveguide and, as a result, permits photon-pair generation over a broad range of signal-idler wavelengths.
- Subjects :
- Optical amplifier
Waveguide (electromagnetism)
Materials science
Photon
Fabrication
business.industry
Photonic integrated circuit
Lithium niobate
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
010309 optics
chemistry.chemical_compound
Optics
chemistry
0103 physical sciences
Thin film
0210 nano-technology
business
Tunable laser
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Optics Express
- Accession number :
- edsair.doi.dedup.....ed86472cfddead3622f84e387493b7b0