Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser

Hanlim Lee; Hoon Kim; Jaehoon Lee; Sung Kee Kim; Gyuwoong Lee; Seongtaek Hwang; Yunje Oh; Jichai Jeong; Changsup Shim

doi:10.1109/LPT.2005.843979

Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser

Hanlim Lee, Hoon Kim, Jaehoon Lee, Sung Kee Kim, Gyuwoong Lee, Seongtaek Hwang, Yunje Oh, Jichai Jeong, Changsup Shim

Department of Brain and Cognitive Engineering

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

8 Citations (Scopus)

Abstract

We propose and demonstrate a cost-effective way to implement a 10-Gb/s chirped duobinary (CDB) transmitter using an electroabsorption modulated laser (EML) followed by a LiNbO₃ Mach-Zehnder modulator both driven with binary signals. Successful transmission is achieved over 285 km of dispersion-uncompensated standard single-mode fiber without significantly increasing the complexity and cost of the transmitter, compared to conventional duobinary transmitters. The demonstrated CDB signals exhibit a superior performance to conventional duobinary signals, in terms of back-to-back receiver sensitivity and transmission distance. We achieve consistent transmission performance with three EMLs obtained from two different vendors, each having different chirp and transmission characteristics. Therefore, we believe the use of EMLs greatly reduces the implementation issues of 10-Gb/s CDB transmission systems.

Original language	English
Pages (from-to)	905-907
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	4
DOIs	https://doi.org/10.1109/LPT.2005.843979
Publication status	Published - 2005 Apr

Keywords

Electroabsorption modulated laser (EML)
Optical duobinary
Optical modulation
Prechirped modulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser. / Lee, Hanlim; Kim, Hoon; Lee, Jaehoon; Kim, Sung Kee; Lee, Gyuwoong; Hwang, Seongtaek; Oh, Yunje; Jeong, Jichai; Shim, Changsup.

In: IEEE Photonics Technology Letters, Vol. 17, No. 4, 04.2005, p. 905-907.

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

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abstract = "We propose and demonstrate a cost-effective way to implement a 10-Gb/s chirped duobinary (CDB) transmitter using an electroabsorption modulated laser (EML) followed by a LiNbO3 Mach-Zehnder modulator both driven with binary signals. Successful transmission is achieved over 285 km of dispersion-uncompensated standard single-mode fiber without significantly increasing the complexity and cost of the transmitter, compared to conventional duobinary transmitters. The demonstrated CDB signals exhibit a superior performance to conventional duobinary signals, in terms of back-to-back receiver sensitivity and transmission distance. We achieve consistent transmission performance with three EMLs obtained from two different vendors, each having different chirp and transmission characteristics. Therefore, we believe the use of EMLs greatly reduces the implementation issues of 10-Gb/s CDB transmission systems.",

keywords = "Electroabsorption modulated laser (EML), Optical duobinary, Optical modulation, Prechirped modulation",

author = "Hanlim Lee and Hoon Kim and Jaehoon Lee and Kim, {Sung Kee} and Gyuwoong Lee and Seongtaek Hwang and Yunje Oh and Jichai Jeong and Changsup Shim",

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AU - Kim, Hoon

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AU - Kim, Sung Kee

AU - Lee, Gyuwoong

AU - Hwang, Seongtaek

AU - Oh, Yunje

AU - Jeong, Jichai

AU - Shim, Changsup

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AB - We propose and demonstrate a cost-effective way to implement a 10-Gb/s chirped duobinary (CDB) transmitter using an electroabsorption modulated laser (EML) followed by a LiNbO3 Mach-Zehnder modulator both driven with binary signals. Successful transmission is achieved over 285 km of dispersion-uncompensated standard single-mode fiber without significantly increasing the complexity and cost of the transmitter, compared to conventional duobinary transmitters. The demonstrated CDB signals exhibit a superior performance to conventional duobinary signals, in terms of back-to-back receiver sensitivity and transmission distance. We achieve consistent transmission performance with three EMLs obtained from two different vendors, each having different chirp and transmission characteristics. Therefore, we believe the use of EMLs greatly reduces the implementation issues of 10-Gb/s CDB transmission systems.

KW - Electroabsorption modulated laser (EML)

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KW - Optical modulation

KW - Prechirped modulation

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