Title :
Traveling-wave photodetector design and measurements
Author :
Giboney, Kirk S. ; Rodwell, Mark J.W. ; Bowers, John E.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
A simple and accurate design method for traveling-wave photodetectors is presented and illustrated by example. Fully distributed, hybrid-coplanar, traveling-wave photodetectors are designed. Linear and nonlinear responses are measured, and linear responses are compared with design predictions. Record bandwidths of 190 GHz and record bandwidth-efficiency products of 84 GHz are measured. Behavior under high-power illumination is investigated and contrasted with lumped-element photodetectors. A phenomenological model, implying fundamental bandwidth-power limitations, is used to interpret the results
Keywords :
coplanar waveguides; optical design techniques; optical waveguides; photodetectors; semiconductor device models; semiconductor-metal boundaries; waveguide theory; 190 GHz; 84 GHz; MSIS photodetectors; accurate design method; design predictions; fully distributed hybrid-coplanar traveling-wave photodetector design; fundamental bandwidth-power limitations; high-power illumination; linear responses; lumped-element photodetectors; metal semiconductor insulator photodetectors; nonlinear responses; phenomenological model; record bandwidth-efficiency products; traveling-wave photodetector design; Absorption; Bandwidth; High speed optical techniques; Lighting; Nonlinear optics; Optical devices; Optical distortion; Optical waveguides; Photoconductivity; Photodetectors;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.571760
