Analysis and design of traveling-wave photodetectors for rf optical link communication using the finite-difference time-domain method

Soon-Chel Kong; Jeong-Hoon Lee; Seung-Jin Lee; Young-Wan Choi

doi:10.1117/12.382118

13 April 2000 Analysis and design of traveling-wave photodetectors for rf optical link communication using the finite-difference time-domain method

Soon-Chel Kong, Jeong-Hoon Lee, Seung-Jin Lee, Young-Wan Choi

Author Affiliations +

Proceedings Volume 3948, Photodetectors: Materials and Devices V; (2000) https://doi.org/10.1117/12.382118
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

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.

Citation Download Citation

Soon-Chel Kong, Jeong-Hoon Lee, Seung-Jin Lee, and Young-Wan Choi "Analysis and design of traveling-wave photodetectors for rf optical link communication using the finite-difference time-domain method", Proc. SPIE 3948, Photodetectors: Materials and Devices V, (13 April 2000); https://doi.org/10.1117/12.382118

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