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Kawakami; Hiroto
Yokosuka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
7995930 Optical receiver using Mach-Zehnder interferometer August 9, 2011
The present invention relates to an optical receiver, in which the transmittance of a Mach-Zehnder interferometer can be locked at a normal operation point in a simple structure and control. A transmittance detecting circuit and a minute modulation signal detecting circuit are provid
7379236 Optical fiber communication system using remote pumping May 27, 2008
An optical fiber communication system is provided which uses remote pumping that is capable of improving pumping efficiency and reducing a noise figure. A coupler (20) of a linear repeater (18) couples signal light to pumping light outputted from a pumping light source (19). The outp

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