TY - JOUR
T1 - Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method
AU - Hur, Sub
AU - Nam, Seungki
AU - Lee, Hanlim
AU - Hwang, Seongtaek
AU - Oh, Yunje
AU - Jeong, Jichai
N1 - Funding Information:
Manuscript received November 27, 2006; revised July 4, 2006. This work was supported in part by the Brain Korea 21 Project and the National Research Laboratory Program of the Ministry of Science and Technology in South Korea. S. Hur and J. Jeong are with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. S. Nam is with the System LSI Division, Samsung Electronics Company, Suwon 442-742, Korea. H. Lee, S. Hwang, and Y. Oh are with the Telecommunications R&D Center, Samsung Electronics Company, Suwon 442-742, Korea. Digital Object Identifier 10.1109/JLT.2006.884565
PY - 2006/12
Y1 - 2006/12
N2 - In this paper, the limitations of the performance of electroabsorption modulators (EAMs) as optical transceivers in passive picocell systems by using the finite-difference time-domain (FDTD) method are theoretically investigated. EAMs with no bias voltage are modeled by the FDTD method with consideration of the interaction between electromagnetic fields and optical powers in optical waveguides. Transmission and responsivity of EAMs according to various optical input powers and chip lengths are calculated. Then, power margins of the downlink and uplink paths are estimated to define the service ranges of the passive picocell systems. In addition, EAMs with biased voltage are characterized for comparison. The results suggest that the service range of the passive picocell system using a no-biased EAM can be extended up to 20 m with a chip length of 400 μm and an optical input power larger than 10 dBm.
AB - In this paper, the limitations of the performance of electroabsorption modulators (EAMs) as optical transceivers in passive picocell systems by using the finite-difference time-domain (FDTD) method are theoretically investigated. EAMs with no bias voltage are modeled by the FDTD method with consideration of the interaction between electromagnetic fields and optical powers in optical waveguides. Transmission and responsivity of EAMs according to various optical input powers and chip lengths are calculated. Then, power margins of the downlink and uplink paths are estimated to define the service ranges of the passive picocell systems. In addition, EAMs with biased voltage are characterized for comparison. The results suggest that the service range of the passive picocell system using a no-biased EAM can be extended up to 20 m with a chip length of 400 μm and an optical input power larger than 10 dBm.
KW - Electroabsorption modulator (EAM)
KW - Finite-difference time domain (FDTD)
KW - Microwave photonics
KW - Optical systems
KW - Radio-over-fiber (RoF)
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U2 - 10.1109/JLT.2006.884565
DO - 10.1109/JLT.2006.884565
M3 - Article
AN - SCOPUS:33847665517
VL - 24
SP - 4953
EP - 4958
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 12
ER -