发明名称 Optical transmitter
摘要 In an optical transmitter comprising a directly modulated laser and a wavelength filter provided on a post-stage of the directly modulated laser, the wavelength filter has a modulated light input port for inputting modulated light output from the directly modulated laser, a filter transmitted light output port for outputting light having a wavelength included in a filter transmission band among the modulated light as filter transmitted light, and a filter cutoff light output port provided separately from the modulated light input port and the filter transmitted light output port and outputting light having a wavelength included in a filter cutoff band among the modulated light as filter cutoff light, and the peak of the filter transmission band is set on a shorter-wave side from the peak of the spectrum of modulated light output from the directly modulated laser.
申请公布号 US8068744(B2) 申请公布日期 2011.11.29
申请号 US20100662726 申请日期 2010.04.30
申请人 AKIYAMA SUGURU;YAMAMOTO TSUYOSHI;FUJITSU LIMTED 发明人 AKIYAMA SUGURU;YAMAMOTO TSUYOSHI
分类号 H04B10/04;H04J14/02 主分类号 H04B10/04
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