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Proceedings Paper

Analysis and design of traveling-wave photodetectors for rf optical link communication using the finite-difference time-domain method
Author(s): Soon-Chel Kong; Jeong-Hoon Lee; Seung-Jin Lee; Young-Wan Choi
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Paper Abstract

We investigate the microwave characteristics of traveling- wave photodetector using the finite-difference time-domain method. This method enables us to consider the full configuration of the device to be studied with no assumption. Therefore we obtain accurate simulation result, though the geometry of ridge-type coplanar waveguide photodetector is complicated. Physical phenomena such as attenuation and dispersion are shown in time domain. We offer two design parameters, the width of PIN region and the thickness of i-layer, and analyze TWPDs property in frequency domain. Microwave loss, characteristic impedance, and RF refractive index are shown and we find out that there exists a tradeoff condition for design.

Paper Details

Date Published: 13 April 2000
PDF: 11 pages
Proc. SPIE 3948, Photodetectors: Materials and Devices V, (13 April 2000); doi: 10.1117/12.382118
Show Author Affiliations
Soon-Chel Kong, Chung-Ang Univ. (South Korea)
Jeong-Hoon Lee, Chung-Ang Univ. (South Korea)
Seung-Jin Lee, Chung-Ang Univ. (South Korea)
Young-Wan Choi, Chung-Ang Univ. (South Korea)

Published in SPIE Proceedings Vol. 3948:
Photodetectors: Materials and Devices V
Gail J. Brown; Manijeh Razeghi, Editor(s)

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