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Journal Article
High-Speed Traveling-Wave Photodetector with a 3-dB Bandwidth of 410 GHz
- Authors
- Jeong-Woo Park, Sangpil Han, Donghun Lee, Han-Cheol Ryu, Jun-Whan Shin, Namje Kim, Young-Jong Yoon, Hyunsung Ko, Kyung Hyun Park
- Issue Date
- 2012-12
- Citation
- ETRI Journal, v.34, no.6, pp.942-945
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- A high-speed traveling-wave photodetector (TWPD) with an InGaAs absorber is designed and realized. The bandwidth of the TWPD is measured using electro-optic sampling techniques. The bandwidth is 410 GHz, which shows that the RC limitation is overcome. While the TWPD shows a low responsivity of 0.06 A/W at 1,550 nm, this value can be improved through further optimization of the structure without a sacrifice in bandwidth. © 2012 ETRI.
- KSP Keywords
- 10 Ghz, 3-dB bandwidth, High Speed, Traveling wave, electro-optic(EO), electro-optic sampling, sampling techniques