Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method

Sub Hur; Seungki Nam; Hanlim Lee; Seongtaek Hwang; Yunje Oh; Jichai Jeong

doi:10.1109/JLT.2006.884565

Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method

Sub Hur, Seungki Nam, Hanlim Lee, Seongtaek Hwang, Yunje Oh, Jichai Jeong

Department of Brain and Cognitive Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	4953-4958
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	24
Issue number	12
DOIs	https://doi.org/10.1109/JLT.2006.884565
Publication status	Published - 2006 Dec

Keywords

Electroabsorption modulator (EAM)
Finite-difference time domain (FDTD)
Microwave photonics
Optical systems
Radio-over-fiber (RoF)

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2006.884565

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title = "Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method",

abstract = "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.",

keywords = "Electroabsorption modulator (EAM), Finite-difference time domain (FDTD), Microwave photonics, Optical systems, Radio-over-fiber (RoF)",

author = "Sub Hur and Seungki Nam and Hanlim Lee and Seongtaek Hwang and Yunje Oh and Jichai Jeong",

note = "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",

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language = "English",

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journal = "Journal of Lightwave Technology",

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AU - Hur, Sub

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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.

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KW - Microwave photonics

KW - Optical systems

KW - Radio-over-fiber (RoF)

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Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method

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