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

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 1

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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

Cite this

Hur, S., Nam, S., Lee, H., Hwang, S., Oh, Y., & Jeong, J. (2006). Performance evaluation of electroabsorption modulators as optical transceivers in radio-over-fiber systems by FDTD method. Journal of Lightwave Technology, 24(12), 4953-4958. https://doi.org/10.1109/JLT.2006.884565

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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)",

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AU - Oh, Yunje

AU - Jeong, Jichai

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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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10.1109/JLT.2006.884565