Resonant-Optical-Cavity Photoconductive Switch With 0.5% Conversion Efficiency and 1.0 W Peak Power

Document Type

Article

Publication Date

6-1-2006

Identifier/URL

40289981 (Pure); 33745754166 (QABO)

Abstract

We report a new photoconductive switch having an average output power of 44 microW, an instantaneous bandwidth of approximately 300 GHz, an output pulse width of approximately 2.2 ps, a peak output power of approximately 1.0 W, and an optical-to-electrical conversion efficiency of approximately 0.5% when pumped by a palm-sized mode-locked free-space laser at lambda=780.6 nm with an average power of 8.7 mW and an optical pulse width of approximately -230 fs. The switch is made from an ErAs:GaAs epitaxial layer inside a resonant optical cavity and coupled to a planar three-turn square spiral antenna.

DOI

10.1364/OL.31.001729

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