Enhanced free space beam capture by improved optical tapers

Bartley T, Heim B, Elser DA, Sych D, Sabuncu M, Wittmann C, Lindlein N, Marquardt C, Leuchs G (2010)


Publication Status: Published

Publication Type: Authored book, Volume of book series

Publication year: 2010

Pages Range: 100-107

Event location: Naples

ISBN: 9783642117305

DOI: 10.1007/978-3-642-11731-2_13

Abstract

In our continuous variable quantum key distribution (QKD) scheme, the homodyne detection set-up requires balancing the intensity of an incident beam between two photodiodes. Realistic lens systems are insufficient to provide a spatially stable focus in the presence of large spatial beam-jitter caused by atmospheric transmission. We therefore present an improved geometry for optical tapers which offer up to four times the angular tolerance of a lens. The effective area of a photodiode can thus be increased, without decreasing its bandwidth. This makes them suitable for use in our free space QKD experiment and in free space optical communication in general. © Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering 2010.

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How to cite

APA:

Bartley, T., Heim, B., Elser, D.A., Sych, D., Sabuncu, M., Wittmann, C.,... Leuchs, G. (2010). Enhanced free space beam capture by improved optical tapers.

MLA:

Bartley, Tim, et al. Enhanced free space beam capture by improved optical tapers. 2010.

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