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A lens-coupled hybrid optical integration system for a 100GbE transmission module is demonstrated for the first time. The multi-channel system has been realized via a precise lens-alignment technique exploiting high-power laser irradiation.
To provide personal services in a ubiquitous environment, it is necessary to identify users without giving a psychological pressure to them. This paper proposes a configuration of the sensor network used to identify a user based on his or her sole pressure distribution on a sensor mat that uses a hetero-core optical fiber. Specifically, it presents a filtering algorithm used to determine the pressure...
When creating a personal Web service, the personal identification method used in the service should not give users a feeling of being managed or supervised. We have proposed a personal identification method based on information about the "sole" of the foot, which has not yet been applied in the biometrics field, and evaluated the algorithm used in this method. This paper describes on the...
We investigate theoretically and experimentally transmission color filters using silicon subwavelength gratings on quartz substrates. Each grating area is 120 mum-square, which is suitable pixel size for displays and multichannel detectors. In the fabrication, electron beam lithography and fast atom beam etching are used. The grating periods are 400, 350, and 440 nm for the red, green, and blue filters,...
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