Fiber-connectorized micropillar cavities

We present a cryogenically compatible method for permanently connecting and coupling a single mode fiber to a single mode of a micropillar cavity with embedded quantum dots (QDs). Efficient coupling of up to 40% was measured which requires a 300 nm positioning accuracy that remains preserved during...

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Bibliographic Details
Published in:Applied physics letters 2010-09, Vol.97 (13), p.131113-131113-3
Main Authors: Haupt, Florian, Oemrawsingh, Sumant S. R., Thon, Susanna M., Kim, Hyochul, Kleckner, Dustin, Ding, Dapeng, Suntrup, Donald J., Petroff, Pierre M., Bouwmeester, Dirk
Format: Article
Language:English
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Summary:We present a cryogenically compatible method for permanently connecting and coupling a single mode fiber to a single mode of a micropillar cavity with embedded quantum dots (QDs). Efficient coupling of up to 40% was measured which requires a 300 nm positioning accuracy that remains preserved during the fiber attachment procedure and during cool-down to 4 K. Fiber coupling, as opposed to conventional free space coupling, makes it possible to connect many such QD-cavity systems within the same cryostat which can interact through an external optical network, facilitating the implementation of hybrid photon/confined-electron schemes for quantum communication and information processing.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3493187