Ultrafast transient characteristics of photoconductive elements for optical wireless communications

X. Jin; C. M. Collier; J. J. A. Garbowski; B. Born; J. F. Holzman

doi:10.1117/12.2024296

25 September 2013 Ultrafast transient characteristics of photoconductive elements for optical wireless communications

X. Jin, C. M. Collier, J. J. A. Garbowski, B. Born, J. F. Holzman

Proceedings Volume 8847, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VII; 884710 (2013) https://doi.org/10.1117/12.2024296
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

An integrated photoconductive (PC) sensor is introduced as an optoelectronic element for visible light optical wireless communications (OWC) links. The sensor applies the standard PC switch, being a biased metal-semiconductor-metal gap, in a three-fold-symmetric corner-cube architecture with a summed output photocurrent at the vertex. Such a form facilitates bidirectional retroreflective communications to meet fundamental OWC requirements for broad directional and broad spectral capabilities. The ultimate OWC capability, for ultrafast optoelectronic switching times, is studied here for material response and transit time response, and it is shown that ultrafast (picosecond) optoelectronic switching times can be achieved and the general device design consideration is discussed for emerging visible light OWC systems.

Citation Download Citation

X. Jin, C. M. Collier, J. J. A. Garbowski, B. Born, and J. F. Holzman "Ultrafast transient characteristics of photoconductive elements for optical wireless communications", Proc. SPIE 8847, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VII, 884710 (25 September 2013); https://doi.org/10.1117/12.2024296

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