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Journal Article 10-Gb/s 1.59-μm DFB-LD Transmission Over 20 km SMF With No Compensation
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Authors
Oh Kee Kwon, Ho Sung Cho, Chul Wook Lee, Su Hwan Oh, Yong Ahn Leem, Eun Soo Nam
Issue Date
2016-02
Citation
IEEE Photonics Technology Letters, v.28, no.4, pp.509-512
ISSN
1041-1135
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LPT.2015.2500558
Abstract
We present a 10-Gb/s 1.59- μm directly modulated laser (DML) capable of a 20-km transmission in a standard single-mode fiber without the use of any other compensation techniques. For the fabricated distributed feedback laser diode chips, the static, dynamic, and transmission properties were tested. During these tests, it appears that the signal quality was improved after a certain transmission distance. To examine the change in signal shape during the transmission, a time-resolved back-to-back signal was measured and its transmission properties simulated. The simulated results of a time-resolved signal show good agreement with those obtained from a transmission test. As a result, it was confirmed that a 10-Gb/s DML signal (with an extinction ratio of 4 to 5 dB) can be transmitted at up to 20 km with a power penalty of less than 1 dB.
KSP Keywords
Directly modulated laser(DML), Distributed feedback laser diode, Distributed feedback lasers(DFBs), Laser diode(LD), Signal quality, Single-mode fiber(SMF), Standard single-mode fiber, Time-resolved, Transmission distance, back-to-back, extinction ratio