Realization of double resonance for a bright frequency-tunable source of narrowband entangled photons

In this paper, we report an interesting phenomenon when precisely adjust the tuning crystal for double-resonance of a type-II configured parametric amplifier cavity, which is later verified as a cavity-enhanced effect in optics alignment. The theoretical result indicates that an angle accuracy error...

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Bibliographic Details
Main Authors: Yang, Jian (Author) , Zhao, Tian-Ming (Author) , Zhang, Han (Author) , Yang, Tao (Author) , Bao, Xiao-Hui (Author) , Pan, Jian-Wei (Author)
Format: Article (Journal)
Language:English
Published: 2011
In: Chinese physics
Year: 2011, Volume: 20, Issue: 2, Pages: 1-4
ISSN:1741-4199
DOI:10.1088/1674-1056/20/2/024202
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1674-1056/20/2/024202
Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1088/1674-1056/20/2/024202
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Author Notes:Yang Jian, Zhao Tian-Ming, Zhang Han, Yang Tao, Bao Xiao-Hui and Pan Jian-Wei
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Summary:In this paper, we report an interesting phenomenon when precisely adjust the tuning crystal for double-resonance of a type-II configured parametric amplifier cavity, which is later verified as a cavity-enhanced effect in optics alignment. The theoretical result indicates that an angle accuracy error within 0.09° is necessary to achieve a high contrast ratio of 100:1 for a cavity with a finesse of about 205, which is crucial but high-demanding to get a high-quality narrowband entanglement source. Meanwhile, we figure out a method to release such a high requirement and get high visibility in a moderate-accuracy alignment.
Item Description:Gesehen am 12.12.2022
Physical Description:Online Resource
ISSN:1741-4199
DOI:10.1088/1674-1056/20/2/024202