Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser
| Autor: | C.S. Shim, Sung Kee Kim, Jae-Hoon Lee, Yun-Je Oh, Han-Lim Lee, Hoon Kim, Gyu-Woong Lee, Seong-taek Hwang, Jichai Jeong |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
Transmitter Successful transmission Transmission system Transmission performance Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Transmission (telecommunications) law Electronic engineering Chirp Electrical and Electronic Engineering Sensitivity (electronics) |
| Zdroj: | IEEE Photonics Technology Letters. 17:905-907 |
| ISSN: | 1041-1135 |
| DOI: | 10.1109/lpt.2005.843979 |
| Popis: | 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 LiNbO/sub 3/ 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. |
| Databáze: | OpenAIRE |
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