APRIL 5, 2010 -- Oki Semiconductor has developed the OL3191M, a new externally modulated laser (EML) with 1300-nm wavelength band to enable 43-Gbps serial transmission up to 10 km. The EML is expected to begin sampling in June 2010. Product launch is scheduled to take place in October 2010.

The company previously released the 1500-nm OL5191M EML, compliant with the XLMD-MSA for 40 Gbps communication in May 2009. The OL519M supported a range of around 2 km. The newly developed OL3191M makes it possible to obtain a good waveform even after 10 km, says Oki, since within the 1300-nm wavelength band, the influence of chromatic dispersion in the optical fiber is low.

The OL3191M EML and the InP HEMT driver IC are mounted together in the same package, which reduces number of components and minimizes size.

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