Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Toru Segawa and Ryo Takahashi and Yasuo Shibata and Yoshihiro Kawaguchi and Matsuo Shinji and Takaaki Kakitsuka,20-km Transmission of 40-Gb/s Signal using Frequency Modulated DBR Laser,Optical Fiber Communication Conference and National Fiber Optic Engineers Conference,,OSA,2009-01-01,,,OThG4,https://cir.nii.ac.jp/crid/1874242817762987136,https://doi.org/10.1364/ofc.2009.othg4