Title :
Analytic bandwidth expressions of travelling-wave photodetectors for broadband terahertz emitters
Author :
Jeong-Woo Park ; Shin, Jun-Hwan ; Ryu, Han-Cheol ; Han, Sang-Pil ; Kim, Namje ; Ko, Hyunsung ; Park, Kyung Hyun
Author_Institution :
THz Photonics Creative Res. Center, ETRI, Daejeon, South Korea
Abstract :
We have derived analytic expressions of bandwidth limitations of travelling-wave photodetectors (TWPDs) for only-output and both input/output impedance matching cases, without any approximations. Results are effective for design of TWPD for broadband terahertz photomixer.
Keywords :
impedance matching; photodetectors; terahertz wave devices; TWPD design; analytic bandwidth expressions; broadband terahertz emitters; broadband terahertz photomixer; input-output impedance matching; travelling-wave photodetectors; Absorption; Approximation methods; Bandwidth; Broadband communication; Impedance matching; Optical waveguides; Photodetectors;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380216
