High performance photon-pair source based on a fiber-coupled periodically poled KTiOPO4 waveguide
Tian Zhong, Franco N. C.Wong,
Tony D.Roberts, and Philip Battle
Outline
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Results of the article
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Hong - Ou - Mandel Interference Measurement
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Conclusion
Results
"Let's start by the end"
Buf first...
... a bit of context !
Requirements for a practical quantum computer :
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Long relevant decoherence times, much longer than the gate-operation time
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...
David P. DiVincenzo
Director of the Institute of Theoretical Nanoelectronics
Results
- Efficient generation of photon pairs at 1316nm in a fiber-coupled waveguide : \( 2 \times 10^{7} s^{-1} mW^{-1}\)
- Hong-Ou-Mandel visibility : 98.2%
HOM Interference Measurement
"Not related to resistance"
The theory
Now you are probably thinking
Remember what we are trying to do !
"Long relevant decoherence times, much longer than the gate-operation time"
The theory
Experimental Setup
Let's break it down
In theory...
In practice...
Conclusion
"They lived happily ever after"
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A lot of coherent pairs
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Long coherence time: \(3.83\pm 0.21ps\)
Conclusion
- Efficient generation of photon pairs at 1316nm in a fiber-coupled waveguide : \( 2 \times 10^{7} s^{-1} mW^{-1}\)
- Hong-Ou-Mandel visibility : 98.2%
Thank you for your attention !
Any questions ?