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http://dx.doi.org/10.5762/KAIS.2011.12.5.2285

The Research on SMSR Yield Improvement of the Optical Transceiver Using Modulated DFB Laser  

Kwon, Yoon-Koo (Opto-electronics R&D Center, Lightron Fiber-optic Devices Inc.)
Kim, Chang-Bong (Division of Radio-wave Engineering, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.5, 2011 , pp. 2285-2290 More about this Journal
Abstract
This paper is the research on SMSR yield improvement of the optical transceiver using modulated DFB laser. In general, the wavelength of DFB laser optical transceiver are 1310, 1490 and 1550 nm. Usually SMSR in modulated DFB is difficult to improve as low as 30 dB because of high slop efficiency trade off. In modulation condition, we studied SMSR improvement according to adjust bias current, extinction ratio and optical line terminal receiver sensitivity. As our test results, we can found a method how to improve SMSR for optical transceiver for long distance.
Keywords
SMSR(Side Mode Suppression Ratio); DFB(Distributed Feedback); Optical Transceiver; ER(Extinction Ratio);
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